This website uses cookies to ensure you get the best experience on our website. Learn more

How Long Would It Take To Travel the Solar System? | Unveiled

  • How Long Would It Take To Travel the Solar System? | Unveiled

    7:13

    How Long To Travel The Solar System? ► Subscribe:
    For more such images and videos visit

    It's the ultimate road trip, across all of space, and to the outer edges of our solar system. You'd pass planets, asteroids, and glide through long stretches of apparent nothingness. But how long would it take to reach the edge of our star system? What would be your ETA? And what would you find there??

    What do you think? Let us know in the comments, and tell us more questions you'd like us to explore!

    Find more mind bending videos to satisfy your curiosity here:

    Why Haven't We Found Aliens Yet? -

    What If We Destroyed The Moon? -

    #Space #SpaceTravel #SolarSystem

  • Imagine You Would Get On Every Planet Of The Solar System... WOW!

    8:41

    Be like SMART BANANA:

    Reactions of your body to visiting every planet

    Hello everyone. Welcome to our channel. In today’s video Smart Banana will tell you what it feels like to visit every planet of the solar system and what your body reaction would be when you get there. If you’re curious to find out what “pizza” moon smells like, please keep watching.

    TIMESTAMPS:
    Mercury 00:16
    Venus 01:14
    Earth :) 02:11
    Mars 02:40
    Jupiter 03:57
    Jupiter's moon IO 04:49
    Saturn 05:22
    Uranus 06:09
    Neptune and Triton 06:44
    Pluto 07:28

    Well... To cut a long story short:

    On Mercury it’s quite likely that some kind of meteorite would crash on the surface and kill you.

    Venus has a very hot and thick atmosphere. You would not survive a visit to the surface of the planet - you would burn up in temperatures high enough to melt lead.

    On Mars you’ll get multiple burns because you can’t hide from the UV radiation anywhere.

    Jupiter will only welcome you for 1 second before crushing you with raging winds and hurricanes.

    And so on and so force. Once the Earth is definitely the place. The habitable zone of the solar system makes Earth a real gem for the development of life. It is neither too hot nor too cold to support liquid water - thought to be a key ingredient for the birth of various life forms.

    We feel pretty comfortable here but we’re also eager to explore the solar system and beyond with Smart Banana!

    #space #planets #smartbanana
    Music by Epidemic Sound:

    Stock materials (photos, footages and other):




    Smart Banana videos are for entertainment purposes. If you feel there is a factual inaccuracy, have a suggestion for a new topic, or are a fan of the Smart Banana, we want to hear from you.
    ----------------------------------------------------------------------------------------
    Our Social Media:

    Facebook:

    The Bright Side of Youtube:

    5-Minute Crafts Youtube:

    ----------------------------------------------------------------------------------------
    For more videos and articles visit:

  • How Fast Could We Travel Our Solar System and Galaxy Using Hyperspace?

    4:08

    How quickly could we travel from planet to planet or star to star in the real world using hyperspace? Today I break down some basic math to figure it out!
    ---
    Subscribe for more Star Wars videos every day!
    ---
    Support the channel:
    Instagram:
    Twitter:
    Facebook:
    Discord:
    Snapchat: SWMinute
    Google+:
    Star Wars Tees:

    VLOG channel:
    ---
    #starwars

  • Solar System 101 | National Geographic

    4:11

    How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn facts about the solar system’s genesis, plus its planets, moons, and asteroids.
    ➡ Subscribe:

    #NationalGeographic #SolarSystem #Educational

    About National Geographic:
    National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

    Get More National Geographic:
    Official Site:
    Facebook:
    Twitter:
    Instagram:

    Read more in The solar system, explained


    Solar System 101 | National Geographic


    National Geographic

  • How big is the Solar System?

    1:44

    The average science project doesn't do the Solar System justice. This video shows relative sizes of the planets and how far they really are from the Sun.

    Get your Solar System Mobile here:

    Follow me on social media:
    Facebook:
    Instagram:
    Twitter:
    Patreon:

    What's Inside of a Rubik's Cube:
    How Software is Made:

    Music: Big Screen by Silent Partner (Youtube audio library)
    Made with Blender 2.73

    #solarsystem #space #b3d

  • How Earth Moves

    21:37

    It’s here! Science stuff, mind-blowing stuff, Vsauce stuff, oh my!! THE CURIOSITY BOX:

    Jake’s video about The Curiosity Box:

    Minute Physics on why December days are the longest:

    StandUpMaths on calendars and leap days:

    Tom Scott on the Equation of Time:

    My video on what would happen if the Earth stopped spinning:

    GREAT visuals showing how Earth moves around the sun:



    George Washington’s birthday:

    real-time sub solar point location:

    Lahaina noon images from the Oahu Astrophotography club:

    analemma:

    great solargraph and analemma images:

    interactive seasons and ecliptic simulator:

    Nasa video of seasonal movement of Earth:

    Tropical year:

    Earth rotation specifics:

    How Earth moves through the universe:






    minute physics on cab:

    PBS spacetime on the cosmic microwave background:





    CMB rest frame:




    Wikipedia:










    wikicommons images:





    To explore space, I highly recommend these:




    music by
    and

    Awesome 3D graphics by Eric Langlay:
    Lame 2D stuff by me.

  • What Lies Beyond the Edge of Our Solar System?

    7:45

    The Voyager space probes have gone further into the unknown than any other spacecraft. With both probes officially in interstellar space, what have we learned?
    »Subscribe to Seeker!
    »Watch more Focal Point:

    In 1965, a PhD student figured out that every 176 years the four planets in our solar system align in such a unique way that it is possible to use their gravitational forces to slingshot from one planet to the next.

    This insight, that came to fruition using just a slide rule and simple computer programs, became part of an ambitious mission to send two probes and golden records out into space for a grand tour.

    Enter: The Voyagers.

    The Voyager probes are two obscure looking robots, weighing roughly 800 kilograms with giant arms and big ears, it took 1,500 engineers and scientists to bring these robotic explorers to life.

    The Voyagers took some of the first detailed snapshots of planets and moons—revealing Io’s volcanism, close-up details of Saturn’s icy rings, and Neptune’s great dark spot.

    And after traveling for more than 43 years, clocking in 18 billion kilometers traveled, the Voyagers are taking humanity into the next great beyond: interstellar space.

    With the opportunity to visit Uranus and Neptune, the NASA engineers developed a mission within a mission, outfitting the probes with 11 different instruments, redundant systems, and autonomous controls.

    Find out more about the Voyager mission, what we’ve learned so far, and the experts behind it all on this episode of Focal Point.

    #NASA #Space #Interstellar #Voyagers #Galaxy #Seeker #FocalPoint #Science
    ____________________
    Read More:
    Voyager Mission Reveals Unexpected Pressure at The Edge of The Solar System

    “NASA astronomers have used data from the Voyager probes to measure the bustle of particles rippling at the very edge of our Solar System, and discovered the pressure in the distant borderlands of our star is higher than they expected.”

    NASA's Voyager 2 Probe Enters Interstellar Space

    “For the second time in history, a human-made object has reached the space between the stars. NASA's Voyager 2 probe now has exited the heliosphere - the protective bubble of particles and magnetic fields created by the Sun.”

    How NASA Will Prolong the Lives of the Voyager Probes, 11 Billion Miles From Earth

    “Launched 42 years ago, the Voyager 1 and Voyager 2 space probes are now exploring the outer realms of our solar system. Sadly, the end of the mission is now firmly in sight, but NASA has a plan to keep the probes operational for as long as possible before their power finally runs out.”
    ____________________

    Our scientific understanding of the universe is advancing at an unprecedented rate. Join Focal Point as we meet the people building tomorrow’s world. Witness the astonishing discoveries that will propel humanity forward and zero-in on the places where science-fiction becomes science-reality.

    Seeker empowers the curious to understand the science shaping our world. We tell award-winning stories about the natural forces and groundbreaking innovations that impact our lives, our planet, and our universe.

    Visit the Seeker website

    Seeker on Facebook

    Focal Point on Facebook

    Seeker on Twitter

  • What If We Moved the Solar System?

    6:49

    Moving is never easy. The packing and unpacking, having to start fresh and make new friends, all this can be challenging. Let's face it, whether it's a nasty landlord or an imminent threat to humanity, sometimes you just have to move! What if we had to build a stellar engine to move our entire solar system? How could we do it? Where would we go?

    Subscribe to the What If Discussed podcast:
    Listen to the world’s top thinkers in science, astronomy, technology, academia and futurism pondering your most popular “what if” questions.

    Join our Patreon community and help make What If better:

    Can you translate this episode into another language? Add subtitles and we will link your YouTube channel in the description:

    Watch more what-if scenarios:
    Planet Earth:
    The Cosmos:
    Technology:
    Your Body:
    Humanity:

    T-shirts and merch:
    Suggest an episode (detailed):
    Newsletter:
    Feedback and inquiries:

    What If elsewhere:
    Instagram:
    Twitter:
    Facebook:
    What If in Spanish:
    What If in Mandarin:

    Our thumbnail was created by Daniel. Check out more of his art on his Instagram:

    Thank you to our loyal patrons:
    Gabe
    Steve H.

    What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way.

    Produced with love by Underknown in Toronto:

  • What Did Voyager 1 See During its Journey Out Of The Solar System? 1977-2019

    9:21

    Part 1 - The Voyager one space probe is the furthest man-made object from Earth, at 13.5 billion miles away. But what did the spacecraft see during its 42-year journey out of the solar system?

    Patreon *Star* list -
    Silverfleur
    LunaGirl (aka Claire)

    Want to help support my channel and also get added benefits? Then why not become a Patron today?


    Or maybe purchase some of our awesome merchandise! T-shirts, hoodies, mugs, Phone cases, it's all available now on YouTube!

    Also, check out our Amazon store! Just click on the link below to find loads of awesome items - (US Version)
    (UK Version)

    **REMEMBER TO SUBSCRIBE FOR MUCH MORE TO COME**

    Subscribe -
    Facebook -
    Twitter -
    Instagram -

    Music attribution - Ambient-wave-13 - Erokia Sound Design
    All content is Licensed under Creative Commons: By Attribution 3.0

    DISCLAIMER: This video description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. This helps support the channel and allows us to continue to make videos like this. Thank you for your support!

  • How Far Away Is It - 03 - The Solar System

    31:09

    Text at

    Music free version at

    In this segment of our video book, we cover distances inside our Solar System.

    We start out with a brief history beginning with how Nicolas Copernicus used planetary retrograde motion to help move us from the Earth-centric view to the Sun-centric view of our Solar System. We work our way through the contributions made by: Tycho Brahe and his detailed observations made with mural quadrants and sextants; Kepler and his mathematics of elliptical orbits; and Galileo with his observations using the newly invented telescope. We conclude this history with Newton and his theory of gravity. Gravity gives us the first opportunity to explain the inverse square law that will play such a central role in celestial distant measurements as we move out to the stars.

    We then explain planetary parallax as an extension to triangulation and use it to determine the distance to the Moon. We also illustrate all the additional information that becomes available once the distance is known, such as diameter, area and volume. Next, we take a look at the orbit of Mars and the Earth and the distance of Mars from the Sun, followed by distances of all the planets and dwarf planets from the Sun. During this segment we cover the major moons around each planet. We then focus on the Asteroid Belt. We explain Lagrange Points and cover Jupiter’s Trojan asteroids orbiting two of these points. This takes us to Earth’s Trojan asteroid, 2010 TK7.

    We then turn our attention to the Sun. We triangulate the Sun with Venus to calculate our distance from the Sun – one Astronomical Unit. With distance to the Sun known, we calculate its diameter, surface area and volume; the length of Earth’s orbit; the Earth’s velocity around the Sun; and with that, the Sun’s mass. Next, we use Jupiter’s moon Io to calculate the speed of light and with that we calculate how long it takes the Sun’s light to reach the Earth.

    We end by adding the parallax rung to our distance ladder.

    Music:

    @00:00 - Rachmaninov, Sergei: Rhapsody on a Theme of Paganini – Variation 18; Cecile Ousset (Piano), City of Birmingham Symphony Orchestra / Sir Simon Rattle, 1984; from the album “The most relaxing classical album in the world…ever!”

    @03:01 - Bizet, Georges: Entracte to Act III from “Carman”; Orchestre National de France / Seiji Ozawa, 1984; from the album “The most relaxing classical album in the world…ever!”

    @05:13 - Satie, Erik: Gymnopedie No. 1; City of Birmingham Symphony Orchestra – Louis Fremaux, 1974; from the album “The most relaxing classical album in the world…ever!”

    @09:37 - Vangelis: Conquest of Paradise from the album “1492 - Conquest of Paradise”, 1992

    @16:39 - Elgar, Edward: Nimrod from ‘Enigma’ Variations Op. 36; London Symphony Orchestra / Sir Adrian Boult, 1986 - from the album “The most relaxing classical album in the world…ever!”

    @18:44 - Massenet, Jules: Meditation from ‘Thais’; Hans Kalafusz (violin), Stuttgart Radio Symphony Orchestra / Sir Neville Marriner, 1987 EMI Electrola GmbH - from the album “The most relaxing classical album in the world…ever!”

    @23:26 - Pachelbel, Johann: Cannon in D; Academy of St. Martin in the Fields – Sir Neville Marriner, 1974; from the album “The most relaxing classical album in the world…ever!”

  • The Top 5 Places We Could Colonize In Our Solar System | Answers With Joe

    12:21

    For the human race to continue in the far future, we're going to have to live beyond planet Earth. Here are the 5 best options in our own solar system.


    Support me on Patreon!


    Follow me at all my places!
    Instagram:
    Snapchat:
    Facebook:
    Twitter:

    LINKS LINKS LINKS:













    PBS Spacetime on colonizing Venus


    ====================

    The 5 best options for colonizing in our solar system are:
    The moon
    Mars
    Europa
    Titan
    Venus

    The moon
    Gravity: 1/6 that of earth
    Air pressure: none
    Temperature: extreme (253 in sun, -253 in shade)
    - Why go - a place to launch to other places
    Orbiting at 2288 mph (3683 kph) - significant boost
    Advantages: Instant communication with Earth
    Good place to learn how to colonize where Experts are available 24/7
    Advantages: Lighter gravity means we could build bigger there
    Advantages: could dome over craters to create housing
    Advantages: water ice in some pole craters

    One place we have talked a lot about is Mars
    Mars
    Gravity: Just over 1/3 (38%)
    Air Pressure: .6% if Earth’s
    Temperature: 70 in day (20C), -100 at night (-73C)
    Why go: Most comfortable temperature-wise and gravity-wise, but pressure is still abysmal
    Down-side: Thin atmosphere means not enough to support life but enough to make landings difficult.
    Terraforming option - most potential for terraforming. Melting ice caps could pump CO2 into the air and thicken the atmosphere as well as warm the planet


    Europa
    Gravity: 13% of Earth’s
    Air pressure: barely exists - mostly oxygen
    Temperature: -260F -160C
    This seems like a swing and a miss, but there’s something interesting under the surface of Europa
    Tidal heating causes a sea of liquid water beneath the surface.
    One of the best options for finding life in the solar system
    Underwater habitats might be the answer.
    Downside: radiation carried by Jupiter’s magnetic field would pose an issue

    Titan
    Gravity: 13% of Earth’s
    Air pressure: 1.5x that of Earth
    Temperature: -290F, -179C
    Of all the places in the solar system, Titan’s air pressure is most like Earth’s
    You could just walk around on the surface without a suit, except for the fact that it’s so cold methane flows in rivers.
    Could use the methane for fuel

    But I promised something controversial, and here it is, my personal favorite option for colonizing another planet… Venus.

    Venus
    Gravity: 91% of Earth’s
    Air Pressure: 100x that of Earth
    Temperature: 872F, 467C

    Now I know what you’re saying, you’re saying Joe, that only meets one of the three criteria, how can you possibly pick that as your number one?

    Because those numbers are for the planet’s surface. Up in the clouds, it’s a different story.

    Venus’ air pressure is insane. On the surface, it would crush you like a soda can. But about 50 kilometers up in the atmosphere, it’s about the same as here.

    Which means that just like a ship can float on top of the water, we could build colonies that float on the upper atmosphere of Venus.

    It would still be hot, but manageable.

    And I know people will always say, but what if you fall? Or if you drop something, you’ll never get it back. Well, I go back to the ship on the sea analogy. If you fall off the boat, you’re likely to drown. If you drop your phone over the side, you’ll never see it again. But we still have cruise ships carrying thousands of people and entire navies floating around out there.

    Plus the communication time would be smaller than anywhere else.

  • How Long You Can Survive On Each Planet

    2:56

    We know how long a human being could survive on a summer day on Mars without a spacesuit. (Answer: not long at all.) But what about the other planets in our solar system?

    Neil deGrasse Tyson breaks it down. Business Insider is the fastest growing business news site in the US. Our mission: to tell you all you need to know about the big world around you. The BI Video team focuses on technology, strategy and science with an emphasis on unique storytelling and data that appeals to the next generation of leaders – the digital generation.

  • What If Earth Was the Only Planet in the Solar System?

    5:22

    With your support we can make our show better! Join our Patreon community:

    Imagine never being able to dream of landing on Mars or traveling to Saturn.
    Not because it's impossible to get there, but because they didn't exist. Because Earth was the only planet in our solar system. What would the night sky look like? Where would Earth be located? And how would humanity evolve?

    Watch more what-if scenarios:
    Planet Earth:
    The Cosmos:
    Technology:
    Your Body:
    Humanity:


    Tweet us your what-if question to suggest an episode:

    What If elsewhere:
    Instagram:
    Twitter:
    Facebook:

    Suggest an episode (detailed):
    T-shirts and merch:

    Feedback and inquiries:

    What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.

  • How BIG Is Our Solar System? | Earth Lab

    9:33

    New science kid on the block Dominic Burgess uses the scientific football pitch method to try and give us an idea of just how big our solar system really is.

    Footnotes:

    1) 2 x distance from sun to the limit of its gravitational pull = 4 light years
    2)

    3)

    4)


    5)


    6)

    7)

    8)

    9)




    Subscribe for more awesome science -

  • The helical model - our solar system is a vortex

    3:21

    Please consider becoming a Patron to support my work:
    Patrons will have early access to cool new videos.

    This is a non-conventional view of our solar system that is different from the standard 'flat' diagrams. We travel, never return to the same spot again. Like the music?

    Respect my copyright and do not re-upload.
    Thanks to the community for providing translations!
    New version: Solar System 2.0:
    Full story and philosophy:

    PART 2 is here:
    Information & research:
    Music:

    French subtitles provided by the Resonance Project
    Greek subtitles provided by vasoula2908
    Download the sound track: (FOR PERSONAL USE ONLY)

    No, this was not made with Universe Sandbox, but with 3DsMax.
    Yes, I messed up two orbits.

  • Why is the Solar System Flat?

    3:12

    Thanks to Embry-Riddle Aeronautical University for supporting us on Subbable.com! -

    A big thanks as well to Subbable supporters The Great Tobini (aka Tobyn Pearson) and Georgi Yanev! You make it possible for us to continue making MinutePhysics

    Music video -
    What to do When it's Cold Outside -

    Galaxy simulation by Rob Crain (Leiden) and the Virgo Consortium, visualization by Rob Crain (Leiden) and Jim Geach (Hertfordshire)

    MinutePhysics is on Google+ -
    And facebook -
    And twitter - @minutephysics

    Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

    Music by Nathaniel Schroeder

    Created by Henry Reich Created by Henry Reich

  • Will We Ever Visit Other Stars?

    12:50

    Watch Bravest Warriors:
    T-SHIRT: Vsauce + Bravest Warriors!

    Music By Jake Chudnow:


    Likelihood of interstellar travel:

    Time it would take to visit nearest star:

    Curiosity Rover self portrait on Mars:

    Hayden Planetarium's Digital Universe [Mac or PC]:

    Orders of Magnitude (speed):

    Fermi Paradox:

    What it looks like to travel near light speed:

    Liam's NEW MUSIC Channel:

    Liam and Brad are WORLD OF THE ORANGE:

    Wormholes:

    Alcubierre drive:

    Alcubierre drive video:

    Alcubierre PDF:

    Andrew Kennedy's wait calculation paper:

    MIT Game Lab Download A Slower Speed of Light:

    Bad Astronomer on a body in space:

    SciShow on a body in space:

    Wikipedia article on explanations and criticisms of the Fermi Paradox (great read):

    VERY cool wikipedia artcile timeline of the FAR future:

    Stock footage from:

    ***************************************************************
    Vsauce Links

    T-Shirts:
    Facebook:
    Twitter:

    Vsauce:
    Vsauce2:
    Vsauce3:
    WeSauce:

  • What Is The Interplanetary Transport Network? Free Travel Across the Solar System

    8:00

    Sure, if you've got lots of energy, you can zip around the Solar System. But if you’ve got time and rocket fuel is in short supply, you can take the Interplanetary Superhighway.

    References:




    Support us at:
    More stories at:
    Follow us on Twitter: @universetoday
    Follow us on Tumblr:
    Like us on Facebook:
    Google+ -
    Instagram -

    Team: Fraser Cain - @fcain / frasercain@gmail.com
    Karla Thompson - @karlaii
    Chad Weber - weber.chad@gmail.com

    It was with great fanfare that Elon Musk announced SpaceX’s plans to colonize Mars with the Interplanetary Transport System.

    I really wish they’d stuck to their original name, the BFR, the Big Fabulous Rocket, or something like that.

    The problem is that Interplanetary Transport System is way too close a name to another really cool idea, the Interplanetary Transport Network, which gives you an almost energy free way to travel across the entire Solar System. Assuming you’re not in any kind of rush.

    When you imagine rockets blasting off for distant destinations, you probably envision pointing your rocket at your destination, firing the thrusters until you get there. Maybe turning around and slowing down again to land on the alien world. It’s how you might drive your car, or fly a plane to get from here to there.

    But if you’ve played any Kerbal Space Program, you know that’s not how it works in space. Instead, it’s all about orbits and velocity. In order to get off planet Earth, you have be travelling about 8 km/s or 28,000 km/h sideways.

    So now, you’re orbiting the Earth, which is orbiting the Sun. If you want to get to Mars, you have raise your orbit so that it matches Mars. The absolute minimum energy needed to make that transfer is known as the Hohmann transfer orbit. To get to Mars, you need to fire your thrusters until you’re going about 11.3 km/s.

    Then you escape the pull of Earth, follow a nice curved trajectory, and intercept the trajectory of Mars. Assuming you timed everything right, that means you intercept Mars and go into orbit, or land on its surface, or discover a portal to hell dug into a research station on Phobos.

    If you want to expend more energy, go ahead, you’ll get there faster.

    But it turns out there’s another way you can travel from planet to planet in the Solar System, using a fraction of the energy you would use with the traditional Hohmann transfer, and that’s using Lagrange points.

    We did a whole video on Lagrange points, but here’s a quick refresher. The Lagrange points are places in the Solar System where the gravity between two objects balances out in five places. There are five Lagrange points relating to the Earth and the Sun, and there are five Lagrange points relating to the Earth and the Moon. And there are points between the Sun and Jupiter, etc.

    Three of these points are unstable. Imagine a boulder at the top of a mountain. It doesn’t take much energy to keep it in place, but it’s easy to knock it out of balance so it comes rolling down.

    Now, imagine the whole Solar System with all these Lagrange points for all the objects gravitationally interacting with each other. As planets go around the Sun, these Lagrange points get close to each other and even overlap.

    And if you time things right, you can ride along in one gravitationally balanced point, and the roll down the gravity hill into the grasp of a different planet. Hang out there for a little bit and then jump orbits to another planet.

    In fact, you can use this technique to traverse the entire Solar System, from Mercury to Pluto and beyond, relying only on the interacting gravity of all these worlds to provide you with the velocity you need to make the journey.

    Welcome to the Interplanetary Transport Network, or Interplanetary Superhighway.

    Unlike a normal highway, though, the actual shape and direction these pathways take changes all the time, depending on the current configuration of the Solar System.

    In a second, we’re going to talk about what missions have already used the ITN, and how humans could use this network to colonize the entire Solar System, but first, I’d like to thank Scotty Jones, Chris Benninger, and the rest of our 626 patrons for their generous support. If you love what we’re doing and want to help out, head over to patreon.com/universetoday.

    If you think this sounds like science fiction, you’ll be glad to hear that space agencies have already used a version of this network to get some serious science done.

  • What If Another Sun Entered Our Solar System?

    5:12

    With the vastness of the Universe, everything in it seems so spread out. But some objects are closer than you might realize. Every now and then, a random interstellar asteroid passes through the Oort cloud, the wall of icy debris at the very edge of our Solar System. But what if a rogue star unceremoniously rampaged right through the Oort cloud?

    Watch more what-if scenarios:
    Planet Earth:
    The Cosmos:
    Technology:
    Your Body:
    Humanity:

    Tweet us your what-if question to suggest an episode:

    What If elsewhere:
    Instagram:
    Twitter:
    Facebook:

    Suggest an episode (detailed):
    T-shirts and merch:

    Feedback and inquiries:

    What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.

  • StoryBots Outer Space | Planets, Sun, Moon, Earth and Stars | Solar System Super Song | Fun Learning

    15:12

    The StoryBots are curious little creatures who live beneath our screens, offering a world of learning and fun for kids. The Emmy Award-winning “Ask the StoryBots” is now streaming on Netflix!

    #StayHome and Learn About Outer Space #WithMe !

  • What If a Wormhole Formed in Our Solar System?

    3:17

    What would happen if you flew into a wormhole? Would you ever hear back? Where would you end up? Back in time? Another galaxy? Here's what would happen if a wormhole formed in our Solar System.

    You've probably heard of wormholes from Thor, Interstellar, Star Trek, or if you're really old school, Albert Einstein. In 1935, Albert Einstein and physicist Nathan Rosen came up with the idea of bridges in space-time!

    Transcript and sources:

    Made possible with the support of Ontario Creates

    About What If:
    An Underknown original web series, presented by Hashem al Ghaili

    Imagination will often carry us to worlds that never were. But without it, we go nowhere. — Carl Sagan

    What If takes you on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.


    Follow what-if on Instagram for bonus material:
    Follow the show on Facebook Watch:

    Production:
    Feedback, inquiries and suggestions:

  • What If a Quasi-Star Entered Our Solar System?

    4:52

    This rogue star has been traveling the Universe. And now, it's finally entering our Solar System. But this isn't just any regular star. It's known as a quasi-star and is one of the biggest stars in existence. What would happen if this star entered our Solar System? And how would Earth be affected?

    Transcript and sources:

    Subscribe to our second channel called How to Survive:

    Can you translate this episode into another language? Add subtitles and we will link your YouTube channel in the description:

    Watch more what-if scenarios:
    Planet Earth:
    The Cosmos:
    Technology:
    Your Body:
    Humanity:

    T-shirts and merch:
    Suggest an episode:
    Newsletter:
    Feedback and inquiries:

    What If elsewhere:
    Instagram:
    Twitter:
    Facebook:
    What If in Spanish:
    What If in Mandarin:
    Podcast:

    What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way.

    Produced with love by Underknown in Toronto:

  • Sun 101 | National Geographic

    5:01

    The sun keeps the planets in its orbit with a tremendous gravitational force. What would happen if it disappeared entirely? Learn about the star at the center of our solar system, and how it is critical to all life as we know it.
    ➡ Subscribe:

    About National Geographic:
    National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

    Get More National Geographic:
    Official Site:
    Facebook:
    Twitter:
    Instagram:

    Sun 101 | National Geographic


    National Geographic

  • Watch This Guy Build a Massive Solar System in the Desert | Short Film Showcase

    7:22

    The vastness of space is almost too mind-boggling for the human brain to comprehend. In order to accurately illustrate our place in the universe, one group of friends decided to build the first scale model of the solar system in seven miles of empty desert. Watch a beautiful representation of our universe come together in light and space in this extraordinary short film.
    ➡ Subscribe:
    ➡ Get More Short Film Showcase:

    #NationalGeographic #SolarSystem #ShortFilmShowcase

    About Short Film Showcase:
    The Short Film Showcase spotlights exceptional short videos created by filmmakers from around the web and selected by National Geographic editors. We look for work that affirms National Geographic's belief in the power of science, exploration, and storytelling to change the world. The filmmakers created the content presented, and the opinions expressed are their own, not those of National Geographic Partners.

    See more from National Geographic's Short Film Showcase at

    Get More National Geographic:
    Official Site:
    Facebook:
    Twitter:
    Instagram:

    About National Geographic:
    National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

    Credit: Wylie Overstreet and Alex Gorosh



    Watch This Guy Build a Massive Solar System in the Desert | Short Film Showcase


    National Geographic

  • Solar System Exploration: 50 Years and Counting | Nat Geo Live

    28:42

    Join Bill Nye and leading NASA scientists as they celebrate 50 years of enthralling solar system exploration, and look forward to what's to come.
    ➡ Subscribe:
    ➡ Get More Nat Geo Live:

    #NationalGeographic #SolarSystem #NatGeoLive

    About Nat Geo Live (National Geographic Live):
    Thought-provoking presentations by today's leading explorers, scientists, and photographers.

    Get More National Geographic:
    Official Site:
    Facebook:
    Twitter:
    Instagram:

    About National Geographic:
    National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

    Upcoming Events at National Geographic Live!


    Solar System Exploration: 50 Years and Counting | Nat Geo Live


    National Geographic

  • Voyager 2s 11 billion mile journey at a human scale

    3:46

    40 years later, Voyager 2 is really, really, really far from Earth.

    Subscribe to our channel!

    ///

    Sources:
    NASA measurements for planetary distances (averaged due to elliptical orbit):

    ///

    August 20, 2017 marks the fortieth anniversary of the launch of Voyager 2. Along with Voyager 1, NASA sent the twin spacecraft to collect data about giant planets of our outer solar system. Voyager 2 was the first spacecraft to visit Uranus and Neptune, as well as discovering many new moons orbiting both Jupiter and Saturn. In addition to collecting data, Voyager 2 was sent with a copy of “The Golden Record”: a disk containing 116 images and various audio recordings that depict human life. Should Voyager 2 ever be encountered by an extraterrestrial, the record will be a means of understanding planet Earth. Besides the collection of data and the mysteries of alien life, perhaps the most wondrous aspect of Voyager 2's mission is the distance it has traveled: nearly 11 billion miles as of late 2017. It is the second-farthest human-made object from earth (the farthest is Voyager 1) and it is currently on a one-way journey into the unknown depths of interstellar space. Unable to grasp the enormity of this distance, we made a video to try and visualize what that actually looks like.

    ///

    Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out to get up to speed on everything from Kurdistan to the Kim Kardashian app.

    Check out our full video catalog:
    Follow Vox on Twitter:
    Or on Facebook:

  • Jupiter 101 | National Geographic

    3:17

    Jupiter is the oldest and most massive world in the solar system. Learn about the planet's origin story, its Great Red Spot and oceanic moons, and how this ancient world influenced the formation of the solar system's other planets.
    ➡ Subscribe:

    #NationalGeographic #Jupiter #Educational

    About National Geographic:
    National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

    Get More National Geographic:
    Official Site:
    Facebook:
    Twitter:
    Instagram:

    Read more about Jupiter here:

    Jupiter 101 | National Geographic


    National Geographic

  • How far is the edge of the universe?

    16:28

    Did you ever sit under the clear night sky and wonder “does it go on forever? The size of the universe has long been a question that has puzzled scientists, philosophers, and theologians, without a clear answer… well, until now. In this video, Fermilab’s Dr. Don Lincoln leads you through what modern science can say about the size of the universe.

    For more information visit:

  • Why NASA wont send humans to Venus

    2:58

    Although Venus is easier to reach than Mars, scientists and space agencies around the world show little interest in exploring the planet. Why is it that they have so much enthusiasm in examining Mars but not our neighboring planet, Venus?

    Read more:

    FACEBOOK:
    TWITTER:
    INSTAGRAM:
    TUMBLR:

  • How Far Can We Go? Limits of Humanity.

    7:45

    Use the URL: for 10% with a new website and support this channel. Also make your life easier. Thanks a lot to Squarespace for supporting the show!

    Check out Ethan Siegels Astronomy blog, starts with a bang:

    Is there a border we will never cross? Are there places we will never be able to reach, no matter what? It turns out there are. Far, far more than you might have thought…


    OUR CHANNELS
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    German Channel:
    Spanish Channel:


    HOW CAN YOU SUPPORT US?
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    This is how we make our living and it would be a pleasure if you support us!

    Get Merch designed with ❤ from
    Join the Patreon Bird Army ????


    DISCUSSIONS & SOCIAL MEDIA
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    Reddit:
    Instagram:
    Twitter:
    Facebook:
    Discord:
    Newsletter:


    OUR VOICE
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    The Kurzgesagt voice is from
    Steve Taylor:


    OUR MUSIC ♬♪
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    700+ minutes of Kurzgesagt Soundtracks by Epic Mountain:

    Spotify:
    Soundcloud:
    Bandcamp:
    Youtube:
    Facebook:

    The Soundtrack of this video:

    Soundcloud:
    Bandcamp:
    Epic Mountain Music:


    ???????????? PATREON BIRD ARMY ????????????
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    Many Thanks to our wonderful Patreons from who support us every month and made this video possible:

    Nicoleta, Timothy Pifer, Thomas Junier, Sam Posnick, Muhammad Fikri, Michael Wawra, Matt Welch, Nuno Tiago, Leigh Beattie, Erik Onnen, Jonathan Häberle, Adit Kadkol, Benson Hawk, Geraint Scott, Alex Söres, Jake Sobrist, Mark Jobes, Bueno, Pierce Ferriter, Bacon Fat Labs, Raphael Grund, BEn Gazzard, Zurxo, Lovelyn Sapuay, David Enrique Erazo Robles, Matt Carol, Eirik Wilhelm Hamborg, Franco B, Jaroslav Stehlik, John Richardson, Jon R, Jack Hong, Lino Coscia, Kahu Coyle-Puke, Вадим Росток, Aaron Rabenstein, Gamblord, Benjamin Achren, Giorgi, Michael Lee, Jeremy, Spencer Egan, Vitor Gondim Tomaz, Michael Komorowski, Joshua Dittrich, Nawapat Kaweeyanum, Jeffrey McCullough, Nick Yonge

    How Far Can We Go? Limits of Humanity.

    Help us caption & translate this video!

  • Why There Could Be A Black Hole In Our Solar System

    4:55

    In 2016 astrophysicists, Konstantin Batygin and Mike Brown noticed unusual gravitational activity in the outer solar system. They speculated this activity was from a ninth planet situated in the Kuiper belt. But now astrophysicists James Unwin and Jakub Scholtz propose Planet 9 isn't a planet but actually a primordial black hole.

    MORE SPACE:
    The Mysterious Case Of NASA's Missing $1.1 Billion Moon Lander | Beyond Earth

    8 NASA Robots That Will Study The Mysteries Of Space

    NASA’s $30 Billion Moon Return Mission, Explained | Beyond Earth


    ------------------------------------------------------

    #BlackHole #SolarSystem #TechInsider

    Tech Insider tells you all you need to know about tech: gadgets, how-to's, gaming, science, digital culture, and more.

    Visit us at:
    TI on Facebook:
    TI on Instagram:
    TI on Twitter:
    TI on Amazon Prime:
    INSIDER on Snapchat:

    Why There Could Be A Black Hole In Our Solar System

  • How to Move the Sun: Stellar Engines

    9:01

    Sources and further reading:


    Get your Stellar Engine Infographic Poster here:


    Nothing in the Universe is static. In the milky way, billions of stars orbit the galactic center.
    Some, like our sun, are pretty consistent, keeping a distance of around 30,000 light years from the galactic center, completing an orbit every 230 million years.

    This dance is not an orderly ballet - more like a skating rink filled with drunk toddlers. This chaos makes the galaxy dangerous. Our solar neighbourhood is constantly changing, with stars moving hundreds of kilometers every second.

    Only the vast distances between objects protect us from the dangers out there. But we might get unlucky in the future. At some point we could encounter a star going supernova. Or a massive object passing by and showering earth with asteroids.

    If something like this were to happen we would likely know thousands, if not millions of years in advance. But we still couldn’t do much about it.

    Unless… we move our whole solar system out of the way.


    OUR CHANNELS
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    German Channel:
    Spanish Channel:


    HOW CAN YOU SUPPORT US?
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    This is how we make our living and it would be a pleasure if you support us!

    Get Merch designed with ❤ from
    Join the Patreon Bird Army ????


    DISCUSSIONS & SOCIAL MEDIA
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    Reddit:
    Instagram:
    Twitter:
    Facebook:
    Discord:
    Newsletter:


    OUR VOICE
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    The Kurzgesagt voice is from
    Steve Taylor:


    OUR MUSIC ♬♪
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    700+ minutes of Kurzgesagt Soundtracks by Epic Mountain:

    Spotify:
    Soundcloud:
    Bandcamp:
    Youtube:
    Facebook:

    The Soundtrack of this video:

    Soundcloud:
    Bandcamp:
    Youtube:
    Facebook:


    ???????????? PATREON BIRD ARMY ????????????
    ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
    Many Thanks to our wonderful Patreons from who support us every month and made this video possible:

    Patrick Hall, Evan Wenden, riz, Nick Rose, Kevin, Patrick Huizinga, Mike Chang, Deddy Jobson, David Nir, Danny Mill, Kai Hebeler, Gabriel Averett, Pierre Xavier, Rohan Kapoor, Bray Demonbreun, Olivier L, Jared Capelle, Mike, Pierre Krenn, Kristofer Kirss, The Captain, Имяя Фамилияя, Marie Samira, Hekmon, Dsurian, Martina, William Wold, Carston Cook, Daniel Bruce, Milan Juza, michal pol, Dmitry Sadakov, Brian Tieskoetter, kagami suigin, Rosamelia, Amir Johnson, Spencer Byars, Jarrod Parsons, Tayler Martin, bmwniquester, Saito Nakamura, Arnulf Kraan, Emilia Liu, Roosevelt Perry, Frank Blood, Máté Szabó, Kasper Kylmälä, Zach Riddle, Damian Campbell, XeleX55, Johann Pardanaud, Cemil Urganci, 3theNet

  • Real World: Scaling the Solar System

    2:26

    Paul Chodas, Manager for NASA’s Near Earth Object Program, explains Astronomical Units (AUs) and how this unit of measure helps simplify an understanding of distances within the solar system. To further simplify thinking about these vast distances, distances within the solar system are explained scaled to the size of a football field.

  • What If You Traveled Outside Of The Solar System? | Unveiled

    9:10

    Forget Mars, Mercury and Jupiter - we're travelling way further than just the planets of the solar system! In this video, Unveiled finds out what would happen if you travelled beyond the solar system, beyond the Oort cloud and into interstellar space. How long would it take until you reached Alpha Centauri? And where would you go from there?

    This is Unveiled, giving you incredible answers to extraordinary questions!

    Find more amazing videos for your curiosity here:
    Why the Multiverse Might be a Reality -
    What If Tesla Lived Forever? -

    Are you constantly curious? Are you a fiend for facts? Then subscribe for more from Unveiled ►

    #Space #Interstellar #SolarSystem #Science

  • Year On Every Planet In Solar System ||

    13:59

    These Year On Every Planet In Solar System || Revolution around the sun is about to know periods for the planets.

    Every planets takes different time span for revolution around the sun.
    MERCURY - 87.97 Days
    VENUS - 224.70 Days
    EARTH - 365 Days
    MARS - 1.8 Years
    JUPITER - 12 Years
    SATURN - 29 Years
    URANUS - 84 Years
    NEPTUNE - 164 Years

    Note : - FULL DETAILS MENTION IN THE VIDEO.. SO PLEASE WATCH VIDEO...

    ALSO,
    In These video we mention about the fact of all planets in our solar system
    fact about planet mercury
    fact about planet venus
    fact about planet earth
    fact about planet mars
    fact about planet jupiter
    fact about planet saturn
    fact about planet uranus
    fact about planet neptune
    These all information we mention in these video. so please SHARE these video on all platform.



    Music Credits:- Background Music

    Music Name :- Electro-Light - Symbolism [NCS Release]


    Music Video Link:-


    Electro-Light
    ➞ Facebook
    ➞ SoundCloud
    ➞ Twitter
    ➞ YouTube

    Electro-Light
    ➞ Facebook
    ➞ SoundCloud
    ➞ Twitter
    ➞ YouTube

    Electro-Light is back with ‘Symbolism’, a wonderful future trap feel track, which will put your mind at ease after busy day.

    Support on iTunes:
    Download this track for FREE:

    Listen on Spotify:
    Listen on Apple Music:

    ▽ Connect with NCS
    Facebook
    Twitch
    Twitter
    Spotify
    SoundCloud
    Goo+
    Instagram


    THANK YOU ALL..........!!!!!!!!!!!!!!

  • Whats The Smartest Thing To Do In An Alien Invasion? | Unveiled

    8:11

    When aliens invade, it pays to be smart! For this video, Unveiled discovers the smartest survival strategies in the event of a real life extraterrestrial apocalypse! Some will fight... Some will run away... Some will join our alien overlords for a life away from Earth... but, watch this video to make sure that you can keep calm during the chaos!

    What do you think... What would you do in an alien invasion?

    This is Unveiled, giving you incredible answers to extraordinary questions!

    Find more amazing videos for your curiosity here:
    Did Aliens Seed Life on Earth? -
    Have 36 Alien Civilizations Colonized the Milky Way? -

    Are you constantly curious? Then subscribe for more from Unveiled ►

    #Aliens #SETI #Smart

  • Skylight: How Does Our Solar System Move Around the Milky Way?

    2:58

    The planets orbit the Sun in a fairly flat plane. How does that plane relate to the orientation of the Milky Way? If we could see the Sun moving among our night sky constellations, which direction would it be heading? Watch this video to learn how our solar system makes its way through our galaxy.

    #astronomy #space #solarsystem #MilkyWay #ecliptic #galaxy

    ***
    Subscribe to our channel:


    Check out our full video catalog:


    Facebook: ‪ ‬‬‬‬‬‬‬‬‬‬‬‬‬
    Twitter: ‪ ‬‬‬‬‬‬‬‬‬‬‬‬‬
    Tumblr: ‪
    Instagram: ‪

    This video and all media incorporated herein (including text, images, and audio) are the property of the American Museum of Natural History or its licensors, all rights reserved. The Museum has made this video available for your personal, educational use. You may not use this video, or any part of it, for commercial purposes, nor may you reproduce, distribute, publish, prepare derivative works from, or publicly display it without the prior written consent of the Museum.

    © American Museum of Natural History, New York, NY

  • Are We Trapped In The Solar System?

    8:26

    Get free access to Nebula when you sign up for CuriosityStream! Visit
    Are We Trapped In The Solar System? – Second Thought
    SUBSCRIBE HERE:
    WATCH LAST VIDEO HERE:

    New video every Friday!

    Follow Second Thought on Social Media!
    Twitter:
    Instagram:

    Watch More Second Thought:
    Latest Uploads:
    Spaaaaaace!:
    What If...:
    Popular Videos:

    About Second Thought:
    Second Thought is a channel devoted to the things in life worth thinking about! Science, history, politics, religion...basically everything you're not supposed to talk about at the dinner table. Welcome!

    Business Email: secondthoughtchannel@gmail.com

  • Where Does the Solar System End? | Unveiled

    5:57

    Before humans can explore the wider universe we need to break out of our own solar system. But where exactly is the boundary between our solar system and interstellar space? In this video, Unveiled travels past all the planets closest to Earth, to the Kuiper Belt... the Oort Cloud... and beyond! We know more than we've ever known about the solar system, but its size and shape is still a mystery!

    This is Unveiled, giving you incredible answers to extraordinary questions!

    Find more amazing videos for your curiosity here:
    The Secret to Interstellar Travel -
    10 Places for New Human Colonies in the Solar System -

    Are you constantly curious? Then subscribe for more from Unveiled ►

    #SolarSystem #Interstellar #Space #Planets #OortCloud

  • New Years in the Solar System or How long Planets take to Orbit the Sun

    2:16

    New Years in the Solar System or how long Mercury, Venus, Earth, Mars and all planets take to orbit the sun, their orbital period. The more precise orbital periods are:
    Mercury: 87.929 days
    Venus: 224.7 days
    Earth: 365.25 days
    Mars: 686.97 days
    Jupiter: 4332.59 days
    Saturn: 10,759.22 days
    Uranus: 30,685.4 days
    Neptune: 60,189 days
    Source:

    Support RimstarOrg on Patreon

    Subscribe for new videos every week

    Go to the main channel page here

    Follow behind-the-scenes on:

    Twitter

    Google+

    Facebook



    3D modelling and animation done in Blender 2.63.

    Sun, Mercury, Earth, Jupiter, and Uranus image source: NASA

    In The Hall Of The Mountain King (by Grieg) - music from YouTube's Audio Library

    Sound effects: licensed under the Creative Commons 0 License.

  • Traveling the solar system of the speed of light | 3D 2019 ????

    3:56

    Light Speed :
    299,792,458 M/S
    300,000 KM/S
    1,079,252,848 KM/H
    670,616,629 MP/H

    RED SIDE STORE is here :

    MUSIC (3 Background Music Mixed By Me)
    1-Give us Time - Dark Ambient Music (CO.AG Music)
    2-Im walking through the dust - Dark Ambient Background Music(CO.AG Music)
    3-Kevin MacLeod ~ The House of Leaves (EricArchive)

    WIKIPEDIA:
    The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is 299,792,458 metres per second (approximately 300,000 km/s (186,000 mi/s). It is exact because by international agreement a metre is defined to be the length of the path travelled by light in vacuum during a time interval of 1/299792458 second. According to special relativity, c is the maximum speed at which all conventional matter and hence all known forms of information in the universe can travel. Though this speed is most commonly associated with light, it is in fact the speed at which all massless particles and changes of the associated fields travel in vacuum (including electromagnetic radiation and gravitational waves). Such particles and waves travel at c regardless of the motion of the source or the inertial reference frame of the observer. In the special and general theories of relativity, c interrelates space and time, and also appears in the famous equation of mass–energy equivalence E = mc2.

    The speed at which light propagates through transparent materials, such as glass or air, is less than c; similarly, the speed of electromagnetic waves in wire cables is slower than c. The ratio between c and the speed v at which light travels in a material is called the refractive index n of the material (n = c / v). For example, for visible light the refractive index of glass is typically around 1.5, meaning that light in glass travels at c / 1.5 ≈ 200,000 km/s (124,000 mi/s); the refractive index of air for visible light is about 1.0003, so the speed of light in air is about 299,700 km/s (186,220 mi/s), which is about 90 km/s (56 mi/s) slower than c.

    For many practical purposes, light and other electromagnetic waves will appear to propagate instantaneously, but for long distances and very sensitive measurements, their finite speed has noticeable effects. In communicating with distant space probes, it can take minutes to hours for a message to get from Earth to the spacecraft, or vice versa. The light seen from stars left them many years ago, allowing the study of the history of the universe by looking at distant objects. The finite speed of light also limits the theoretical maximum speed of computers, since information must be sent within the computer from chip to chip. The speed of light can be used with time of flight measurements to measure large distances to high precision.

    Ole Rømer first demonstrated in 1676 that light travels at a finite speed (as opposed to instantaneously) by studying the apparent motion of Jupiter's moon Io. In 1865, James Clerk Maxwell proposed that light was an electromagnetic wave, and therefore travelled at the speed c appearing in his theory of electromagnetism.[5] In 1905, Albert Einstein postulated that the speed of light c with respect to any inertial frame is a constant and is independent of the motion of the light source.[6] He explored the consequences of that postulate by deriving the theory of relativity and in doing so showed that the parameter c had relevance outside of the context of light and electromagnetism.

    After centuries of increasingly precise measurements, in 1975 the speed of light was known to be 299792458 m/s (983571056 ft/s; 186282.397 mi/s) with a measurement uncertainty of 4 parts per billion. In 1983, the metre was redefined in the International System of Units (SI) as the distance travelled by light in vacuum in 1/299792458 of a second.

    Follow!
    FB :
    Insta:

  • How far can Voyager 1 go before we lose contact?

    4:48

    The Voyager space probes are the furthest man made objects from Earth. With Voyager 1 being 21 Billion Kilometres from Earth, communication with the Space probe relies on the Deep Space Network. But how far can Voyager 1 go before we lose communication? This video looks at how we communicate with Voyager and when it will eventually stop receiving our signals.

    Thanks for watching this Primal Space video. If you enjoyed it, let me know in the comments below and don't forget to subscribe so you can see more videos like this!

    Support Primal Space by becoming a Patron!


    Twitter:

    Music used in this video:
    » Angelic Forest - Doug Maxwell
    » Proud - Bobby Renz
    » Marianas - Quincas Moreira
    » Court and Page - Silent Partner

    Credits:
    Written & Edited by: Ewan Cunningham (
    Narrated by: Beau Stucki

  • What If There Was Another Earth in Our Solar System?

    4:41

    Twin siblings, twin peaks, twin cities, twin planets... Two earths, one solar system. How would that work?

    Where would it have to be located? Can two planets share an orbit?

    Would people on another Earth be the same as us? Would we be in touch?

    Transcript and sources:

    Watch more what-if scenarios:
    Planet Earth:
    The Cosmos:
    Technology:
    Your Body:
    Humanity:

    Follow what-if on Instagram for bonus material:
    Suggest an episode:
    T-shirts and merch:
    Facebook Watch:
    Watch on Tubi:

    Imagination will often carry us to worlds that never were. But without it, we go nowhere. — Carl Sagan

    If you enjoy What If, make sure to check out our other channel Underknown:

    Produced by Underknown in Toronto, What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.
    Feedback, inquiries and suggestions:

  • Heres How Far Humans Have Sent Spacecraft In Space

    2:48

    This year, 2017, marks the 60th anniversary of the launch of Sputnik, the first satellite to orbit Earth. In those 60 years, we've gone much further, reaching new planets and even the edge of the solar system. Watch as the human race explores the galaxy around us.

    Tech Insider tells you all you need to know about tech: gadgets, how-to's, gaming, science, digital culture, and more.
    Subscribe to our channel and visit us at:
    TI on Facebook:
    TI on Instagram:
    TI on Twitter:

  • Why Do the Planets Orbit in the Same Plane?

    3:07

    While there is a little wiggle room, the planets in our solar system really are orbiting on mostly the same level. Why do they do that?

    Hosted by: Olivia Gordon
    ----------
    Support SciShow by becoming a patron on Patreon:
    ----------
    Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz
    ----------
    Looking for SciShow elsewhere on the internet?
    Facebook:
    Twitter:
    Tumblr:
    Instagram:
    ----------
    Sources:








    ------
    Images:





  • Does The Moon Really Orbit The Earth?

    3:25

    Viewers like you help make PBS (Thank you ????) . Support your local PBS Member Station here:

    What holds the moon up? Moonbeams!
    Don’t miss our next video! SUBSCRIBE! ►►
    ↓ More info and sources below ↓

    According to Newton's law of gravitation, the sun should pull way harder on the moon than the Earth does. So does the moon actually orbit the Earth? Why?

    Special thanks to Ariel for submitting this awesome question to our Facebook page!

    Hill Spheres and lunar orbit:

    True shape of moon's orbit:

    Newton's law of gravitation vs. Hill Sphere:


    Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
    Follow on Twitter:

    Follow on Tumblr:
    Follow on Instagram:

    -----------------
    It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe
    Email me: itsokaytobesmart AT gmail DOT com
    Facebook:
    Google+
    For more awesome science, check out:
    Produced by PBS Digital Studios:

    Joe Hanson - Creator/Host/Writer
    Joe Nicolosi - Director
    Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
    Stephen Bohls - Editing/Motion Graphics/Animation
    Katie Graham - Director of Photography
    John Knudsen - Gaffer

    Theme music:
    Ouroboros by Kevin MacLeod

    Other music via APM

    Stock images from Shutterstock, stock footage from Videoblocks

    French subtitles by Alessandro Dal Cero

    -----------------

    Last week's video:
    What's The Loudest Possible Sound?

    More videos:
    Why Does February Have 28 Days?
    Why Vaccines Work
    Why Are Some People Left-Handed?
    Where Does the Smell of Rain Come From?

  • Astronomy - The Size of the Universe The Solar System

    13:10

    Visit for more math and science lectures!

    In this video I will discusse the size of our solar system.

  • Stupid-Easy Solar for Going Off Grid, RVs and Boondocking

    4:46

    Support us on Patreon:
    Buy kit best price:
    Shop portable solar panels:
    Enjoy our videos? See how you can support our blog here:

    It finally happened! We started out solar journey. This isn't how we saw it happening, but we're very glad it did. Already we're feeling the benefits of offsetting out generator use. Not just the fuel and cost savings, but the convenience too.

    Solar has been on our radar for some time and we recently ran into Go Power at an RV convention. We discussed with them our situation, concerns and frustrations with solar. During the conversation portable solar came up as an option for getting started today on a budget and with the intent to only offset our generator use. This approach had escaped us because we were looking so far forward. We were trying to size the now-and-later solar setup, but it's just hard to do, especially on a budget.

    In the end we made the leap, picked up a portable array and are very happy that our generator use had declined to nill. Sure it's summer so there's lots of sun available. Perhaps by winter we'll have a better feel for solar, our power needs and be more capable of sizing a system to fit our future needs.

    We wanted to share this story with you because we were overcomplicating solar and it was a huge relief to discover that it doesn't have to be. Starting small can make sense especially if you're boondocking, looking for an array to power your campsite or are heading off grid. Had we known this was an option, or at least not overlooked it, when we arrived it would have been in our toolbox for certain.

    If you need portable solar or just plain simple solar, give these portable arrays a look or even a try and see if they'll meet your power needs for today. It's a great way to get started!

    For a full overview of what we've been up to, please visit our blog post above. Lots of great stuff and background that we couldn't possibly share in a roundup YouTube video!

    BLOG POSTS YOU MAY ENJOY
    Complete DIY Cedar Hot Tub:
    Learn to homestead, wherever, wherever:
    Essential Tools We Use On Our Homestead:
    Our Real-Time Costs to Start Our Homestead from Scratch:
    Month One Roundup:
    Month Two Roundup:
    Month Three Roundup:
    Month Four to Seven Roundup:
    Month Eight to Ten Roundup:

    ENJOY THIS VIDEO? SUPPORT US WITHOUT PAYING A DIME!
    It takes us 40+ hours a week to document our journey on both our blog and our YouTube channel. If you enjoy watching our videos and want to help us to produce more of them, learn how you can help us without spending a dime!

    GET SOCIAL!
    Blog:
    Instagram:
    Facebook:
    Pinterest:
    Twitter:

    EQUIPMENT USED TO PRODUCE OUR VIDEOS
    Camera #1:
    Camera #2:
    Tripod:
    Macbook Pro:
    Editing software:

    Searches you might use to find this video:
    portable solar panels for rv
    portable solar panels for camping
    solar panel kits
    portable solar kits
    portable off grid solar
    12v solar panel kits
    best portable solar panels

  • #AskNASA┃ Is the Sun a ball of fire?

    5:36

    Is the Sun a ball of fire? And why does NASA send missions to the Sun? NASA’s Heliophysics Director Nicky Fox explains NASA’s latest solar science findings. The Parker Solar Probe mission is revolutionizing our understanding of the Sun, where changing conditions can propagate out into the solar system, affecting Earth and other worlds. It will travel through the Sun’s atmosphere, closer to the surface than any spacecraft before it, facing brutal heat and radiation conditions — and ultimately providing humanity with the closest-ever observations of a star.

    Comment with your #AskNASA question and subscribe to learn more from our experts!

    This video is available for download from NASA's Image and Video Library:

  • NASA Solar Sails Could Allow Interstellar Travel - Cheddar Explains

    4:42

    Solar sails could shorten space travel time by thousands of years. By using the power of the sun, photons bounce against the sail and give it a push to propel the satellite to it's destination. NASA plans to test the solar sails to take a closer look at near earth asteroids.

    Subscribe to Cheddar on YouTube:

    Read more about the the NASA testing here:

    Connect with Cheddar!
    On Facebook:
    On Twitter:
    On Instagram:
    On Cheddar.com:

Menu