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Are There Other Earths?

  • Are There Other Earths?

    35:24

    For more 4K space, and more great History and Science than you'll ever watch, check out our sister network...

    What are the odds of life on planets orbiting nearby stars? Scientists, wielding sensitive new telescopes and big data tools, have detected planets around thousands of stars; some Sun-like and some very different from our star. Many newly discovered exoplanets lie in habitable zones, where liquid water may support the chemistry that enables biology. How will astronomers discover if we have company in the cosmos...and where they live?

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  • 10 Recently Discovered EARTH LIKE PLANETS ✅

    11:58

    10 Earth Like Planets - Our Next Homes [2018]
    Several exoplanets already pretend to be habitable.One day the earth will be destroyed completely! Where will you go? How will you survive? Well, don't worry! Because we humans found some new Earth-like planets as a backup plan, where we can live.
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    1- Mars



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  • NASA discovers Earth-like planet in habitable zone...

    3:06

    NASA said its Kepler spacecraft has spotted Earth's bigger, older cousin: the first nearly Earth-size planet to be found in a habitable zone.

  • Exoplanets: Are There Other Earths?

    5:21

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    Are there exoplanets like Earth? We live in one of a hundred billion of galaxies, each with hundreds of billions of stars. And now, thanks to modern astronomy, we know that the Milky Way is home to perhaps a hundred billion planets! In the past two decades, these exoplanet discoveries have spawned new questions about our universe, and if there might be another Earth, or other life, somewhere out there.

    In part 1 of our two-part series on exoplanets, we'll look at how astronomers find exoplanets, and what it means to call them Earth-like. We'll trace the history of planetary science back three thousand years and examine Earth's changing status in the cosmos. We were once the center of the universe, and now Earth is just another rock in the sky. What does that mean for us?

    Check out Five Billion Years of Solitude by Lee Billings:

    This week's t-shirt comes from Wowch:

    More reading:

    There are five billion Earth-like planets in the Milky Way:

    The exoplanet catalog:

    Methods of detecting exoplanets:

    Interactive catalog of Kepler's exoplanet discoveries:

    A philosophical and historical look at the exoplanet revolution:

    The Kepler telescope and the adjacent possible:

    How the Kepler telescope scanned the sky:

    An ode to the late Kepler telescope:

    Joe Hanson - Host and writer
    Joe Nicolosi - Director
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  • Astronomers Have Finally Discovered Another Earth

    11:56

    A planet that’s a mere 500 light years away was #discovered and the most shocking part is, that it has a lot of characteristics of #Earth and it could support human life. We’ve always wondered whether another #planet could sustain life and while many have thought #Mars to be the next target of colonization, now, #scientists are looking towards a planet called Kepler 186F.

    10. It’s 500 Light Years Away
    9. Kepler 186F May Not Have Day & Night
    8. Kepler 186F Is the First Known Planet to Be Found That Could Be Habitable
    7. Scientists Believe Kepler 186F Can Sustain Life, Like Another Earth
    6. Kepler 186F Is A Historical Find
    5. There Are Five Different Planets in The Kepler 186F Solar Star System
    4. Kepler 186F’s Red Dwarf Star is Cooler Than the Sun
    3.???
    2. ??
    1. ?

    #Viral #New #Discoveries #2018 #2019

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  • How Many Earth-Like Planets Are There Really?

    25:27

    Over recent years, newspapers have been filled with headlines such as billions of Earths in the Milky Way alone. But how many Earth-like planets are there really?

    Join us as we explore all of the different estimates for how many Earths there really are, how each team arrived at their answers, and why they seem to differ so wildy from each other, before finally we'll offer our own answer to this monumental question.

    Written & presented by Prof David Kipping

    This video is based on research conducted at the Cool Worlds Lab at Columbia University, New York. You can now support our research program directly here:

    References:
    ► Youdin, A., 2011, ApJ, 742, 38:
    ► Catanzarite, J. & Shao, M., 2011, ApJ, 738, 151
    ► Dong, S. & Zhu, Z., 2013, ApJ, 778, 11:
    ► Petigura, E., Howard, A., Marcy, G. W., 2013, PNAS, 110, 19273:
    ► Foreman-Mackey, D., Hogg., D. W. & Morton, T. D., 2014, ApJ, 795, 12:
    ► Farr, W. M., Mandel, I., Aldridge, C., Stroud, K., 2014, arXiv:1412.4849:
    ► Burke, C. J., Christiansen, J. L., Mullally F. et al., 2015, ApJ, 809, 19:
    ► Silburt, A., Gaidos, E., Wu, Y., 2015, ApJ, 799, 180:
    ► Traub, W., 2016, ApJ submitted:
    ► Belikov, R., Stark, C., Batalha, N., et al., 2017:
    ► Garrett, D., Savransky, D., Belikov, R., 2018, PASP, 130, 114403:
    ► Mulders, G. D., Pascucci, I., Apai, D., Ciesla, F. J., 2018, AJ, 156, 24:
    ► Hsu, D. C., Ford, E. B., Ragozzine, D., Ashby, K., 2019, ApJ, 158, 20:
    ► Bryson, S., Coughlin, J., Batalha, N. M. et al., 2019, submitted:
    ► Zink, J. K., Christiansen, J. L., Hansen, B. M. S., 2019, MNRAS, 483, 4479:
    ► Jenkins, J. M., Twicken, J. D.. Batalha, N. M., et al., 2015, AJ, 150, 56:
    ► Burke, C. J., Mullally, F., Thompson, S. E., et al., 2019, AJ, 157, 143:

    Video materials & graphics used:
    ► Atacama timelapse by Timestorm Films:
    ► Spinning galaxy animation by Huy Trường Nguyễn:
    ► GJ 357 animations by NASA's Goddard Space Flight Center/Chris Smith:
    ► Wheat field footage by xbility1:
    ► Orion nebula animation from Space.com/NASA/ESA:
    ► Bacteria videos from Nikon Small World competition:
    ► TESS & Kepler animations by NASA's Goddard Space Flight Center:
    ► Mars flyby footage by Jan Fröjdman/NASA/JPL/University of Arizona:
    ► Trappist-1 animation by ESO/L. Calçada/spaceengine.org:
    ► Kepler Orrery V by Ethan Kruse:

    Movies/TV scenes used:
    ► Agora (2010) Focus Features
    ► 300 (2006) Warner Bros. Pictures

    Music used, in chronological order:
    ► Selha by Stephen Keech, licensed through SoundStripe.com:
    ► Waking Up by Atlas, licensed through SoundStripe.com:
    ► Cylinder Four ( by Chris Zabriskie ( licensed under a Creative Commons Attribution license (
    ► Cylinder Two ( by Chris Zabriskie ( licensed under a Creative Commons Attribution license (
    ► Cylinder Five ( by Chris Zabriskie ( licensed under a Creative Commons Attribution license (
    ► Music from Neptune Flux, We Were Never Meant to Live Here by Chris Zabriskie ( licensed under a Creative Commons Attribution license (

    And also:
    ► Columbia University Department of Astronomy:
    ► Cool Worlds Lab website:

    Latest Cool Worlds Videos ►
    Cool Worlds Research ►
    Cool Worlds Long Form Videos ►

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    #HabitablePlanets #EarthTwins #CoolWorlds

  • A Potentially Habitable Super Earth Has Been Discovered

    10:02

    The universe is too big for us to be the only ones in it. It's just a matter of knowing where to look, and scientists from NASA's TESS program might have stumbled across the next clue in this galactic scavenger hunt. The Transiting Exoplanet Survey Satellite was launched in April of 2019 with the aim of locating planets in orbit around nearby stars.

    One of these stars is the comparatively small GEE-JAY 357. It's about 31 light-years from Earth. It's one of the closest to Earth! Thanks to TESS, NASA astronomers discovered a planet orbiting this distant star. And in fact, it’s one of the few whose atmosphere can be studied by scientists, once they determine if it has one!

    Other videos you might like:
    NASA Has Just Discovered a New Planet!
    The Solar System Is Not Like You Think It Is
    The Real Size of the Universe (Even a Child Understands)

    TIMESTAMPS:
    What is this planet like? 0:27
    A planet that is technically survivable for humans 2:15
    Can we expect any alien visitors? 5:03
    Why we can't see those planets directly 6:57

    #planets #space #brightside

    SUMMARY:
    - GEE-JAY 357 b is believed to be about twenty-two percent larger than Earth, and eleven times closer to its star than Mercury is to the Sun.
    - Scientists have discovered planets beyond our solar system before, but GEE-JAY 357-b is one of the closest to Earth.
    - Hidden beyond the semi-molten glow of this “hot Earth,” as astronomers called it, were two more planets. One of them, GEE-JAY 357-d is just far enough from the star to potentially support life.
    - Its orbiting inside its solar system's habitable zone, warm enough to support life, but not so warm that it ends up charbroiled.
    - NASA scientists estimate that that planet has an average temperature of about minus sixty-four degrees. That’s cold, comparable to the interior of Antarctica.
    - I wouldn’t expect any alien visitors for most of the same reasons humans will probably never be visiting GEE-JAY 357-d for themselves.
    - If intelligent life developed, there’s no reason to believe it wouldn’t sooner or later turn its sensory organs to the stars. That's when the planet's gravity becomes an obstacle. I
    - Scientists have estimated that reaching the moon of a planet ten times the size of Earth, would require almost five hundred thousand tons of fuel to get off the ground.
    - It is worth noting that Astronomers haven't yet been able to see any of these planets directly. The TESS only discovered the massive and hot planet b because of its silhouette passing in front of the star.
    - Since c and d never passed between Earth and GEE-JAY 357 during the month when TESS was able to capture images of the star, we've only been able to study them indirectly.
    - The middle planet, called GEE-JAY 357-c just to make things confusing, didn’t even give us that. Because of its unusually tilted orbit, this planet never passes between Earth and its star at all.

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  • Second Earth discovered in nearby solar system

    2:22

    Earlier this week, astronomers found a planet just like Earth, possibly even containing life, orbiting a sun just one solar system away. Astronomers say it's a dream come true. Charlie D'Agata has more.

  • Is There Intelligent Life On Other Planets?

    8:01

    How are we looking and listening for intelligent life?

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    Now that we know planets are common in our galaxy, how would we tell if one holds life? Sure, it will take incredibly powerful telescopes and ambitious new space missions, but what are we looking for? What are we listening for? How do we help other worlds know that we are here?

    Here's the thing: Life on Earth has an expiration date. No matter what humans do, our aging sun will eventually be so hot that we can't survive. If we want to live on, it will have to be beyond Earth. The only question is, will it be US who live on, or just our radio broadcasts and dead satellites?

    If you missed Part 1 last week:

    Check out Five Billion Years of Solitude by Lee Billings:

    My Sagan + Valentine's Day episode:

    Ray Bradbury reading If Only We Had Taller Been courtesy of NASA/JPL

    More reading:

    The 7 hurdles for a planet to develop intelligent life:

    Sagan's rules for life:

    Earth is gradually getting more radio quiet:

    Searching for the archaeological ruins of extraterrestrial civilzations:

    How long will life survive on Earth?

    Joe Hanson - Host and writer
    Joe Nicolosi - Director
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    Katie Graham - Director of Photography
    Andrew Matthews - Editor and Motion Graphics
    Kate Eads - Production Manager

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  • PLANET JUST LIKE EARTH: Alien Life - National Geographic Documentary HD

    50:42

    When NASA began 60 years ago, we had questions about the universe humans had been asking since we first looked up into the night sky. In the six decades since, NASA, along with its international partners and thousands of researchers, have expanded our knowledge of the Universe by using a full fleet of telescopes and satellites. From the early probes of the 1950s and 1960s to the great telescopes of the 1990s and 21st century, NASA scientists have been exploring the evolution of the universe from the Big Bang to the present.

    The Great Observatories
    NASA astronomers use several kinds of telescopes in space and on the ground. Each observes targets like stars, planets, and galaxies, but captures different wavelengths of light using various techniques to add to our understanding of these cosmic phenomenon.
    Dark Matter
    NASA telescopes have helped us better understand this mysterious, invisible matter that is five times the mass of regular matter. The first direct detection of dark matter was made in 2007 through observations of the Bullet Cluster of galaxies by the Chandra x-ray telescope.

    Black Holes
    Although we can’t “see” black holes, scientists have been able to study them by observing how they interact with the environment around them with telescopes like Swift, Chandra, and Hubble. In 2017, NASA's Swift telescope has mapped the death spiral of a star as it is consumed by a black hole. This year, astronomers using Chandra have discovered evidence for thousands of black holes located near the center of our Milky Way galaxy.
    Galaxies
    A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, held together by gravity. Some are spiral-shaped like our Milky Way Galaxy; others are smooth and oval shaped. NASA telescopes are helping us learn about how galaxies formed and evolved over time.
    Exoplanets
    Just 30 years ago, scientists didn’t know if there were planets orbiting other stars besides our own Sun. Now, scientists believe every star likely has at least one exoplanet. They come in a wide variety of sizes, from gas giants larger than Jupiter to small, rocky planets about as big as Earth or Mars. They can be hot enough to boil metal or locked in deep freeze. They can orbit their stars so tightly that a “year” lasts only a few days; they can even orbit two stars at once. Some exoplanets don’t orbit around a star, but wander through the galaxy in permanent darkness. NASA’s Kepler spacecraft and newly-launched Transiting Exoplanet Survey Satellite are helping us find more distant worlds
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  • Potentially habitable super-Earth discovered

    1:49

    31 lightyears away, a new planet has been found by NASA's Transiting Exoplanet Survey Satellite. Dana Jacobson reports.

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  • Are There Other Earths Alien Planets Discovery Documentary

    45:48

    Since the launch of NASA’s Kepler space telescope in 2009, scientists have uncovered thousands of distant exoplanets in the deep depths of space.

    Scientists in California and Australia are now hoping to expand upon Kepler’s work with 121 planets potentially hosting life-supporting moons.

    The key to finding a habitable exoplanet or moon is to find the stellar bodies within the so-called Goldilocks zone.

    These are the ideal hotspots within a solar system where a planet’s atmospherics are neither too hot nor too cold for liquid water to exist.


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  • How Many Other Earths Are There? Maybe Billions.

    1:11

    The research won't prove there's life on these other Earths—but giddy scientists say this would be a big step along the way.

  • Another Earth in Outer Space?

    14:52

    Astronomers using NASA's space-based Kepler Telescope may be close to finding the first Earth-like planets in outer space, potentially capable of supporting life. Such a discovery could change the way we view our place in the universe. WSJ's Michael Kofsky reports.
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  • Is There Life On Other Planets? | SPACE WEEK 2018

    7:51

    Could there be life on other planets? Did life come to Earth from space? Have we already found evidence that aliens exist?

    #SpaceWeek2018 #DiscoverySpaceWeek

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  • Earths Cousin Find Whispers The Possibility That We Are Not Alone

    3:39

    And 'how much longer until a new discovery shouts it out?' asks the Science @ NASA video series. In July 2014, NASA announced the discovery of Kepler 452b, a planet slightly larger than Earth that resides in the habitable zone of its solar system. It is 6 billion+ years old, (older than Earth) allowing for plenty of time for life to develop. -- Read more about the discovery:

    Credit: NASA

  • Searching for Other Earths

    6:11

    Findings by the Kepler telescope, which NASA launched into space in 2009, have led University of California, Berkeley, astronomers to estimate that in our Milky Way galaxy alone there are 40 billion planets similar to Earth, both in size and temperature. Now scientists are trying to figure out which of these exoplanets might have water, the basic ingredient of life.

  • Earth-Sized Planet Found in Stars Habitable Zone, Only 100 Light-Years Away

    3:17

    NASA’s Transiting Exoplanet Survey Satellite (TESS) has been used to discover an Earth-sized planet in it's parent star's habitable zone. The planet is designated TOI 700 d. Story: NASA's TESS Planet Hunter Finds Its 1st Earth-Size World in 'Habitable Zone'

    Credit: NASA's Goddard Space Flight Center/Chris Smith (USRA)
    Scott Wiessinger (USRA): Lead Producer
    Chris Smith (USRA): Lead Animator
    Jeanette Kazmierczak (University of Maryland College Park): Lead Science Writer
    Gabrielle Engelmann-Suissa (USRA): Scientist
    Barb Mattson (University of Maryland College Park): Narrator
    Geronimo Villanueva (Catholic University of America): Visualizer

  • Are There Other Earths?

    54

    Scientists have discovered over 1,000 Earth-like planets -- and some might support life.
    Please LIKE & SUBSCRIBE if you enjoyed!
    **More info & videos below**

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    Scientists are actively searching for Earth twins -- Earth-like planets that might support life. This year, they've discovered two of the most promising planets yet.

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  • Are There Planets More Habitable Than Earth?

    6:10

    Earth probably isn’t the best place in the universe. It turns out there might be even better places to live that are even more suitable for life: superhabitable planets.

    Hosted by: Reid Reimers

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  • Kepler: Are There Other Earths Out There?

    7:30

    NASA's Kepler mission is starting its hunt for other Earths in our galaxy.

    Jane Platt interviews Kepler Project Manager Jim Fanson of Jet Propulsion Laboratory.


    More information on the Kepler mission is online at .

    Images from APOD - Astronomy Picture of the Day. The APOD archive contains the largest collection of annotated astronomical images on the internet. Archive .
    Discover The Cosmos!
    Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

  • NASA reports seeing the 1st confirmed alien object to enter Earths solar system

    3:16

    NASA: Scientists were surprised and delighted to detect --for the first time-- an interstellar asteroid passing through our solar system. Additional observations brought more surprises: the object is cigar-shaped with a somewhat reddish hue. The asteroid, named ‘Oumuamua by its discoverers, is up to one-quarter mile (400 meters) long and highly-elongated—perhaps 10 times as long as it is wide. That is unlike any asteroid or comet observed in our solar system to date, and may provide new clues into how other solar systems formed.

  • Other Earths and Possible Life

    41:47

    Other Earths and Possible Life





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  • TESS Missions First Earth-size World in Stars Habitable-zone

    3:17

    NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star's habitable zone, the range of distances where conditions may be just right to allow the presence of liquid water on the surface. Scientists confirmed the find, called TOI 700 d, using NASA's Spitzer Space Telescope and have modeled the planet's potential environments to help inform future observations.

    TOI 700 is a small, cool M dwarf star located just over 100 light-years away in the southern constellation Dorado. It's roughly 40 of the Sun's mass and size and about half its surface temperature. The star appears in 11 of the 13 sectors TESS observed during the mission's first year, and scientists caught multiple transits by its three planets.

    The innermost planet, called TOI 700 b, is almost exactly Earth-size, is probably rocky and completes an orbit every 10 days. The middle planet, TOI 700 c, is 2.6 times larger than Earth -- between the sizes of Earth and Neptune -- orbits every 16 days and is likely a gas-dominated world. TOI 700 d, the outermost known planet in the system and the only one in the habitable zone, measures 20 larger than Earth, orbits every 37 days and receives from its star 86% of the energy that the Sun provides to Earth. All of the planets are thought to be tidally locked to their star, which means they rotate once per orbit so that one side is constantly bathed in daylight.

    The Spitzer data increased scientists' confidence that TOI 700 d is a real planet and sharpened their measurements of its orbital period by 56% and its size by 38%. It also ruled out other possible astrophysical causes of the transit signal, such as the presence of a smaller, dimmer companion star in the system.

    While the exact conditions on TOI 700 d are unknown, scientists used current information, like the planet's size and the type of star it orbits, and modeled 20 potential environments for TOI 700 d to gauge if any version would result in surface temperatures and pressures suitable for habitability.

    One simulation included an ocean-covered TOI 700 d with a dense, carbon-dioxide-dominated atmosphere similar to what scientists suspect surrounded Mars when it was young. The model atmosphere contains a deep layer of clouds on the star-facing side. Another model depicts TOI 700 d as a cloudless, all-land version of modern Earth, where winds flow away from the night side of the planet and converge on the point directly facing the star.

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    Credit: NASA's Goddard Space Flight Center
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    Gabrielle Engelmann-Suissa (USRA): Scientist
    Barb Mattson (University of Maryland College Park): Narrator
    Geronimo Villanueva (Catholic University of America): Visualizer

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  • What If We Had 2 Earths in the Solar System? | Unveiled

    6:26

    Is there really another Planet Earth hidden somewhere else in the Solar System? The Second Earth theory says yes, there is! The idea is that there's a world identical to our own, but that we can't see it because it's on the opposite side of the sun.

    In this video, Unveiled tests the theory to find out whether it's true... And imagines how different our lives would be if Earth really did have a sister planet in the solar system. What do you think would happen if we discovered that there were two Earths?

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

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    #Space #SolarSystem #Earth #SecondEarth

  • Water found for first time in atmosphere of planet outside Earths solar system

    5:06

    Astronomers from UCL have found traces of water vapour in an exoplanet outside Earth's solar system.…
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  • Three Earth-like planets found outside the Solar System

    1:07

    * Three Earth-like planets found
    * Similar in size and temperature to our own
    * More details could take 5-10 years



    Scientists have found three new planets in space they say may be the most likely location for alien life they have yet discovered.

    These three planets are the first chance to find chemical traces of life outside our Solar System, said *astrophysicist Michaël Gillon*.


    Astronomers in @eapsMIT discover three potentially habitable Earth-sized #exoplanets
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  • NASA’s Hiring A “Planetary Protection Officer” To Shield Earth From Alien Contamination | CNBC

    1:14

    NASA is looking for someone to protect Earth from aliens — and the job pays a six-figure salary. Here’s everything you need to know about the position.
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    NASA’s Hiring A “Planetary Protection Officer” To Shield Earth From Alien Contamination | CNBC

  • The Search for Other Earths: Part 1

    51:16

    Part 1 of The Search for Other Earths: An Evening Dialogue with the NASA Kepler Mission Leaders hosted by FOSS.

    For Part 2:

    With almost 3000 planet candidates discovered by Kepler since its launch in 2009, at no other time in history has the possibility of finding an Earth-like planet been so within our reach. Learn about the groundbreaking hunt for exoplanets and its implications for the search for life elsewhere.

    Speakers:
    • Gibor Basri, Co-Investigator, NASA Kepler Mission; UC Berkeley Department of Astronomy
    • Natalie Batalha, research astronomer and Kepler mission scientist at NASA Ames Research Center
    • Tori Hoehler, Research Scientist, Space Sciences & Astrobiology Division, NASA Ames
    • Andrew Fraknoi, moderator, Chair of Astronomy Department at Foothill College

  • The Search for Other Earths: Part 2

    48:10

    Part 2 of The Search for Other Earths: An Evening Dialogue with the NASA Kepler Mission Leaders hosted by FOSS.

    For Part 1:

    With almost 3000 planet candidates discovered by Kepler since its launch in 2009, at no other time in history has the possibility of finding an Earth-like planet been so within our reach. Learn about the groundbreaking hunt for exoplanets and its implications for the search for life elsewhere.

    Speakers:
    • Gibor Basri, Co-Investigator, NASA Kepler Mission; UC Berkeley Department of Astronomy
    • Natalie Batalha, research astronomer and Kepler mission scientist at NASA Ames Research Center
    • Tori Hoehler, Research Scientist, Space Sciences & Astrobiology Division, NASA Ames
    • Andrew Fraknoi, moderator, Chair of Astronomy Department at Foothill College

  • Exoplanets 101 | National Geographic

    3:54

    Exoplanets challenge the notion that we are alone in the universe. Learn what types of exoplanets exist, the methods scientists employ to find them, and how many worlds might exist in the Milky Way Galaxy.
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    #NationalGeographic #Exoplanets #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.

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    Exoplanets 101 | National Geographic


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  • 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.
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    #NationalGeographic #SolarSystem #Educational

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  • Other Earths. Other Life. | Sara Seager

    1:26:39

    We are one tool away from learning which distant planets already have life on them and which might be welcoming to life.

    MIT Planetary Scientist Sara Seager is working on the tool. She is chair of the NASA team developing a “Starshade” that would allow a relatively rudimentary space telescope to observe Earth-size planets directly, which would yield atmospheric analysis, which would determine a planet’s life-worthiness.

    Despite 1,000-plus exoplanet discoveries by the Kepler spacecraft and the hundreds more expected from the Transiting Exoplanet Survey Satellite after 2017, neither instrument can make detailed observation of the atmosphere of small rocky planets, because each star’s brilliance overwhelms direct study of the rocky motes that might harbor life. A Starshade cures that.

    A former MacArthur Fellow, Seager is author of Exoplanet Atmospheres (02010) and an astrophysics professor at MIT. Her maxim: “For exoplanets, anything is possible under the laws of physics and chemistry.”

    Other Earths. Other Life. was given on August 10, 02015 as part of Long Now's Seminar series. The series was started in 02003 to build a compelling body of ideas about long-term thinking from some of the world's leading thinkers. The Seminars take place in San Francisco and are curated and hosted by Stewart Brand. To follow the talks, you can:

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  • Is it possible that there are other earths in the Universe?

    2:38

    Answered by Hazrat Mirza Tahir Ahmad, Khalifatul Masih IV (may Allah have mercy on him)

  • 23 Are there other Earths out there?

    22:06

    Sarah Pearson, Astrophysicist, Columbia University.

    Space Apps NYC Hackathon April 29-30 2017


    Twitter #newspacecity

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  • The Habitability of Super Earths

    6:21

    An exploration of super earth exoplanets and their potential for harboring life and civilizations.



    Music:

    Cylinder Three by Chris Zabriskie is licensed under a Creative Commons Attribution license (
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  • Imagining Other Earths

    2:52

  • Searching For Other Earths | Video

    18:42

    More space news and info at: - twenty years ago, the first exoplanet discovered around a sun-like star, 51 Pegasi b, made us question what we knew about our universe and launched the search for new worlds.

    This is the story of the pioneers in planet-hunting and how those who have followed are closer to answering one of humanity’s most ancient questions: Is there life elsewhere in the universe?

    Please rate and comment, thanks!

  • Are There A Billion Other Earths Out There?

    44

    A new study reveals planet Earth is among the earliest planets to be born; another 1 billion Earth-sized worlds currently in existence.
    For more highlights from the radio, visit us at

  • 3. The Search for other Earths and Life in the Universe

    1:23:52

    (January 14, 2010) Geoff Marcy, UC Berkeley Professor of Astronomy and Co-Investigator on Kepler Team, discusses the Keplar Teams efforts to locate earth-like planets by observing orbit, doppler shift, and dimming of Upsilon Andromedae.

    Stanford University:


    Stanford University Channel on YouTube:

  • ScienceCasts: Hidden Magnetic Portals Around Earth

    3:54

    A NASA-sponsored researcher at the University of Iowa has developed a way for spacecraft to hunt down hidden magnetic portals in the vicinity of Earth. These portals link the magnetic field of our planet to that of the sun.

  • Ancient Earth, Alien Earths

    59:39

    During an August 20 event at NASA headquarters, called Ancient Earth, Alien Earths, a panel of scientists from NASA and other organizations discussed how vastly different and inhospitable we all would find ancient Earth, if we could go back in time. Despite the conditions, though, it was an environment in which life began and evolved – and understanding how that was possible could help us recognize habitable planets around other stars.

  • Sara Seager: Finding Other Earths

    16:45

    For thousands of years people have wondered, “Are there planets like Earth orbiting nearby stars?” Now we are poised to find out. Presentation at the WORLD.MINDS Annual Symposium in Zurich, Switzerland.

  • Towards the search for life on other earths | Sara Seager | TEDxCoconutGrove

    16:03

    Sara Seager examines her pursuit of an Earth Twin. Looking at Earth from the perspective of outer space may allow us to recognize and to identify characteristics of life that may be present in outer space. She offers a look into her squiggly line science that may be the key to recognizing Earth Twins outside our solar system.

    Professor Sara Seager is a planetary scientist and astrophysicist. She has been a pioneer in the vast and unknown world of exoplanets, planets that orbit stars other than the sun. Her ground-breaking research ranges from the detection of exoplanet atmospheres to innovative theories about life on other worlds to development of novel space mission concepts. Now, dubbed an “astronomical Indiana Jones”, she is on a quest after the field’s holy grail, the discovery of a true Earth twin. Dr. Seager earned her PhD from Harvard University and is now the Class of 1941 Professor of Planetary Science and Professor of Physics at the Massachusetts Institute of Technology. Professor Seager is a 2013 MacArthur Fellow and was named in Time Magazine’s 25 Most Influential in Space in 2012.

    This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at

  • Are There Other Earths

    12:04

  • Kepler: Searching for Other Earths

    10:14

    Date- 4th Mar 09 Source-

    'This webcast takes you behind the scenes to learn more about Kepler's exciting mission to discover other Earth-like planets in our galaxy.'

  • EVERY Multiverse Earth Number in Crisis on Infinite Earths Explained!

    11:50

    EVERY Multiverse Earth Number in Crisis on Infinite Earths Explained! The Flash Season 6, The Flash Season 6 Trailer, The Flash Season 6 Promo, The Flash 6x10, Godspeed, Red Death.

    Like / Share the Video if you enjoyed!
    Covering the latest in The Flash Season 6, Arrow Season 8, Legends of Tomorrow Season 5 and MUCH MORE!

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  • Pale Rainbow Dots: The Search for Other Earths with Drs. Giada Arney and Shawn Domagal-Goldman

    1:19:04

    What does it mean to be a habitable planet? How can we find life if it’s truly “alien” and different from life on Earth? And what techniques can we use to search for life on worlds orbiting distant stars? Drs. Arney and Domagal-Goldman will discuss the science behind these questions and the future telescopes that may provide the answers.

    Bios: Drs. Giada Arney and Shawn Domagal-Goldman, Astrobiologists, NASA Goddard Space Flight Center

  • One Star! 6 Planets! 3 Super Earths! SPACE!

    2:17

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  • One in Five Milky Way Stars Hosts Potentially Life-friendly Earths

    1:14

    One out of every five sun-like stars in the Milky Way galaxy has a planet about the size of Earth that is properly positioned for water, a key ingredient for life, a study released on Monday (November 4) showed.

    The analysis, based on three years of data collected by NASA's now-idled Kepler space telescope, indicates the galaxy is home to 10 billion potentially habitable worlds.

    The number grows exponentially if the headcount also includes planets circling cooler red dwarf stars, the most common type of star in the galaxy.

    Study leader Erik Petigura, an astronomy graduate student at the University of California at Berkeley, said during a conference call with reporters, that planets seemed to be the rule and not the exception.

    Petigura wrote his own software program to analyze Kepler's results and found 10 planets one- to two times the diameter of Earth circling parent stars at the right distances for liquid surface water.

    The telescope worked by finding slight dips in the amount of light coming from about 150,000 target stars in the constellation Cygnus.

    Some light dips were due to orbiting planets passing in front of their parent stars, relative to Kepler's line of sight.

    Extrapolating from 34 months of Kepler observations, Petigura and colleagues found that 22 percent of sun-like stars in the galaxy should have planets roughly the size of Earth suitably positioned for water.

    A positioning system problem sidelined Kepler in May. Scientists are developing alternative missions for the telescope. More than a year of data already collected by Kepler still has to be analyzed.

    So far, the telescope, which was launched in 2009, has found 3,538 candidate planets, 647 of which are about the size of Earth, said astronomer Jason Rowe, with the SETI Institute in Mountain View, Calif.

    Of the 3,538 candidates, 104 are at the right distance from their parent stars for water.

    In total, the list of planets beyond the solar system found by Kepler and other telescopes now numbers more than 1,000.

    The research was published in this week's Proceedings of the National Academy of Sciences and presented on Monday at a Kepler science conference at NASA's Ames Research Center in Moffett Field, California.

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