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Naked Science - Comets

  • Naked Science - Comets


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    Harbingers of doom or givers of life?

    Comets, distant travellers from the outer reaches of our solar system, have captured the imagination of man and have long been shrouded in mystery. Now through Earth based observations and an increasing number of space probes, their origins and nature are becoming unveiled. Naked Science explores behind the legend to reveal what a comet actually is, what secrets they hold for our understanding of how the solar system was formed; shed light on the theory that they brought the building blocks of life to earth and their potential for wiping out life as we know it.

  • On Jupiter - Destroyer of Comets


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    Every other Wednesday we present a new video, so join us to see the truth laid bare...

    The most amazing thing about Jupiter for us Earthlings is that there is no place to stand. We see nothing but clouds and hurricanes the size of Earth, we don’t see the ground because there is no ground.

    For five billion years an icy juggernaut had roamed the backstreets of the Solar System flaring only as it swept close to the heat of the sun. But Comet Shoemaker-Levy 9 hadn’t reckoned on the mighty power of the planet Jupiter. Jupiter, the king of the planets, destroyer of comets.

    The broken fragments of Shoemaker-Levy 9 were big enough to remodel life on Earth. Each was being sucked in by the largest planet in the Solar System, each of their fiery descents was another chance to find out what it’s really like on Jupiter.

    The impact of SL9 highlighted Jupiter's role as a cosmic vacuum cleaner for the inner Solar System. The planet's strong gravitational influence leads to many comets and asteroids colliding with the planet. If Jupiter were not present, the probability of asteroid impacts with the Solar System's inner planets would be much greater.

    For millennia the bright beacon of Jupiter has caught the human gaze as it has travelled the heavens, but we had to wait for the invention of the telescope and a renaissance Italian for the planet to begin giving up its secrets. On the night of 7th January 1610 Galileo Galilei made a discovery that was to challenge Earth’s claim to sovereignty of the solar system.

    Jupiter’s dominance of the Solar System is complete, 1,300 times the size of Earth, it’s a world so enormous it could swallow every planet and moon in the solar system an still have room to spare. Looking back from Jupiter the Earth is a feeble speck circling a faint and distant sun

    Documentary narrated by John Hurt.

  • Comets: Crash Course Astronomy #21


    Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock that orbit the Sun. When they get near the Sun the ice turns into gas, forming the long tail, and also releases dust that forms a different tail. We’ve visited comets up close and found them to be lumpy, with vents in the surface that release the gas as ice sublimates. Eons ago, comets (and asteroids) may have brought a lot of water to Earth -- as well as the ingredients for life.

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    Table of Contents
    Comets Are Chunks of Rock and Ice That Orbit the Sun 1:26
    When They Get Near the Sun They Turn Into Gas 2:08
    Comets Release Gas Via Vents As Ice Sublimates 2:15
    Comets May Have Brought Water and Ingredients for Life to Earth 9:30


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    Halley's Comet, 1910 [credit: New York Times, Wikimedia Commons]
    Bayeux Tapestry [credit: Wikimedia Commons]
    Comet McNaught [credit: Phil Plait]
    Comet McNaught + tail [credit: Chris North, Wikimedia Commons]
    Comet surface [credit: ESA/Rosetta/NAVCAM]
    Fine structure in the comet’s jets [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA]
    Comet Halley [credit: Halley Multicolor Camera Team, Giotto Project, ESA]
    Comet McNaught [credit: ESO]
    Hubble's Last Look at Comet ISON Before Perihelion
    [credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)]
    Hale-Bopp: The Great Comet of 1997 [credit: Jerry Lodriguss, used with permission]
    Sungrazer video [credit: NASA's Goddard Space Flight Center]
    “Large Web” graphic [credit: JHUAPL/SwRI/Dan Durda]
    Comet Daniel [credit: Max Wolf, Wikimedia Commons]
    Vega 1 Low Res [credit: Russian Academy of Sciences]
    The Nucleus of Comet Halley [credit: ESA/MPS]
    Comet Hartley 2 [credit: NASA/JPL-Caltech/UMD]
    Comet 67P/Churyumov-Gerasimenko [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA]
    OSIRIS Catches Activity in the Act [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA]
    Active Pit [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA]
    Depiction of Philae‍‍ '​‍s planned touchdown on the comet [credit: DLR, CC-BY 3.0, Wikimedia Commons]
    Colour Image of a Comet [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA]
    Comet Lovejoy [credit: NASA/Dan Burbank]
    NASA’s Stardust [credit: NASA/JPL]
    Comet dust [credit: NASA]
    Comet Lovejoy [credit: ESO/G. Brammer]

  • Universe: Beyond the Millennium - Alien Life


    Universe: Beyond the Millennium is a television series observing astronomical phenomena, research, and theories on the universe and its origins.

    Narrated by John Hurt.

    The documentary premiered in 1999 and presents an overview of the universe as humans understood it at that time, and how we think it will evolve in the next millennium. Using 3D computer generated graphics, the series features animated sequences that offer insight into the Big Bang theory and the anatomy of the sun.

    Alien Life, when NASA scientists found a lump of rock from Mars with microscopic fossils in it, the search for extraterrestrial life beyond our own became a credible objective. Researchers and scientists from SETI (Search for Extra-Terrestrial Intelligence) have spent decades trying to determine how an alien life force would contact us and if one does, how we would reply.

    At the start of a new millennium we're about to embark on the greatest adventure of all time. Five hundred million miles from Earth, a spacecraft will land on Jupiter's icy moon, Europa. It's mission, to search for alien life. As we reach out across the galaxy, our spacecraft will explore the most extreme environments to answer the ultimate question, are we alone?

  • Catastrophe - Episode 3 - Planet of Fire


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    Every other Wednesday we present a new video, so join us to see the truth laid bare...

    This spectacular five-part documentary series, presented by Tony Robinson, investigates the history of natural disasters, from the planet's beginnings to the present, putting a new perspective on our existence and suggesting that we are the product of catastrophe.

    99% of all the creatures that have ever lived, no longer exist. They were wiped-out in a series of global catastrophes. Each disaster changed the course of evolution on earth. Without them mankind, nor any of the life we see around us, would be here today. For out of catastrophe comes rebirth. Evolution is a savage, imperfect and violent process. It's survive or perish. The earth's history of catastrophes has both moulded the planet and determined evolution. For each disaster led to another leap forward on the evolutionary trail form single celled bacteria to humankind itself.

    Episode 3 - Planet of Fire

    250 million years ago, 95% of life was wiped off the face of Earth in the biggest extinction event ever. But what was responsible? Back then, our planet was a very different place. Millions of years before the era of dinosaurs, creatures such as Dicynodonts and Gorgonopsians roamed the land, while the oceans too teemed with life. Then, in the blink of a geological eye, everything changed. Life itself was almost completely wiped out in what is known as the Permian extinction. Travelling to locations such as South Africa, California, and Iceland, the experts discover that the volcanic activity of the Siberian Traps led to the release of deadly gases from beneath the sea and rises in Earth's temperature. This turbocharged global warming brought drought and a breakdown in the food cycle, with even the strongest animals eventually succumbing to the conditions.

  • Birth of the Solar System | Naked Science: Birth of the Solar System


    The Solar System's birth was far from peaceful. Witness the spectacular explosion known as the Big Bang.
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    If the dinosaurs did not stopped the meteorite , we wouldn't too

  • World of Mysteries - Bermuda Triangle


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    Every other Wednesday we present a new video, so join us to see the truth laid bare...

    Over the past fifty years 3000 ships and 100 planes have gone missing in a mysterious stretch of water in the Atlantic Ocean. One minute they are there, the next, they’ve vanished. They all have one thing in common, they all ventured in to the Bermuda Triangle.

    They’re paradise destinations for tourists, the sunshine coast of Florida and the Florida Keys, the sun-baked island of Puerto Rico, and the Bahamas, and the beautiful coral seas of Bermuda. But the surrounding waters hold a mystery that has been known by many names, the Devil’s Triangle, the Devil’s Seas, Graveyard of the Atlantic, but one given to these infamous waters strikes fear into the hearts of those who attempt to cross it, the Bermuda Triangle.

    The Bermuda Triangle lies off the Eastern Seaboard of the United States bordered by the Florida Keys, Bermuda, and Puerto Rico, one and half million square miles of empty ocean.

    “Bermuda Triangle”, is a documentary, from the “World of Mysteries” series.

  • Are We In Danger Of An Asteroid Attack? | Cosmic Travellers | Spark


    The 1997 documentary Cosmic Travellers: Comets and Asteroids shows an era of excitement and fear about the possibilities of space. Predating the modern technology propelling us through space exploration today, the scientists studying the travel paths of comets and asteroids give us an insight on their research. From simulations of an asteroid impact on Earth, to sending astronauts to their surface, we’ll learn of the ways we can use comets to study the origins of life, and the catastrophic disasters that could be looming in our future.

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    Content licensed from Syndicado to Little Dot Studios. Produced by Adler Media.

    #Space #Spacetravel #Asteroids #Comets #Cosmictravellers #90s #naturaldisaster #technology #enigineering #rockets #astronauts #education

  • Universe: Beyond the Millennium - Stars


    Universe: Beyond the Millennium is a television series observing astronomical phenomena, research, and theories on the universe and its origins.

    Narrated by John Hurt.

    The documentary premiered in 1999 and presents an overview of the universe as humans understood it at that time, and how we think it will evolve in the next millennium. Using 3D computer generated graphics, the series features animated sequences that offer insight into the Big Bang theory and the anatomy of the sun.

    Stars, scientific studies of our sun and surrounding stars are revealing discoveries that link electric and magnetic weather patterns of the sun with storms that rage on the earth. Similarly, viewers learn how the sun's electro-magnetic properties can close the Toronto Stock Exchange and turn off all the lights in New York City.

    In five billion years, our nearest start, the sun, will die, swelling and becoming a red giant. The heat will be so intense the oceans will boil. Our planet will be scorched beyond recognition. The crust will melt, the surface will become an ocean of molten rock, all life will end, in the ultimate armageddon.

  • Everything and Nothing: What is Everything? | Science Documentary | Science


    Two-part documentary which deals with two of the deepest questions there are - what is everything, and what is nothing?

    In two epic, surreal and mind-expanding films, Professor Jim Al-Khalili searches for an answer to these questions as he explores the true size and shape of the universe and delves into the amazing science behind apparent nothingness.

    The first part, Everything, sees Professor Al-Khalili set out to discover what the universe might actually look like. The journey takes him from the distant past to the boundaries of the known universe. Along the way he charts the remarkable stories of the men and women who discovered the truth about the cosmos and investigates how our understanding of space has been shaped by both mathematics and astronomy.

    Professor Jim Al-Khalili explores the true size and shape of the universe and delves into the amazing science behind apparent nothingness.

    For more awe inspiring documentaries, subscribe to our channel:

    Welcome to Reel Truth. Science the home of inspiring documentaries from the scientific and medical world. Here you can find full length documentaries to discover and explore.


  • What is a Comet?


    Nigel Goes to Space

    Join Nigel as he takes you on his journey to the stars and beyond!

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    Often referred to as dirty snowballs, Nigel discusses comets, what they are, where they come from, and how they have inspired dread, fear, and awe in many cultures.

    Comets always capture the imagination, from Hale-Bopp, the Great Comet of 1997, to Halley's Comet that was probed up close by the Giotto spacecraft in 1986. Currently we have the ESA’s Rosetta mission which managed the first successful landing on a comet, 67P/Churyumov-Gerasimenko.

    A comet is a small icy Solar System body that, when passing close to the Sun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind upon the nucleus of the comet. Comet nuclei range from a few hundred metres to tens of kilometres across and are composed of loose collections of ice, dust, and small rocky particles.

    Nigel is an internationally acclaimed science populariser and author, specialising in astronomy and space.

  • Comets - Naked Science Documentary | Full Documentary


    watch, enjoy and subscribe!

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    Copyright to: PioneerProductionsUK (Naked Science - Angry Sky)

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    This video is for education purposes only.

  • Comets - Asteroids And Comets Facts & Information | Space Documentary 2020 Full HD 1080p


    Comets - Asteroids And Comets Facts & Information | Space Documentary 2020 Full HD 1080p
    In this space and universe video documentary, we are going to take you through a journey where you can learn about the comets i.e., comets, asteroids and meteors.

    By watching this space documentary, you can learn all about the comets, asteroids, comets information, asteroids and comets facts, recent comets, list of comets, comets in solar system, etc.

    Watch Comets - Asteroids And Comets Facts & Information (Documentary) here.
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  • Impact Event: Comet Crashing Into Earth - Full Documentary HD


    Comet Crashing Into Earth - Full Documentary HD
    With the Delta Aquarid meteor shower going on right now, and the crowd-favorite Perseid meteor shower hot on its heels, the next few weeks are going to be the prime-time to watch some shooting stars light up the night sky.

    But while dust-size bits of comets sizzling through our atmosphere put on a pretty awesome show, the consequences of Earth confronting one of these comets head-on could actually be pretty disastrous.

    It's not something that you should be worried about, of course. NASA is on the lookout for any cosmic objects on a crash course with our planet, and it's found that the chances of us colliding with a comet or asteroid anytime soon are pretty low.

    It's still interesting to think about, though. What would happen if one of these ancient, celestial chunks of ice, dust, and rock smacked into our planet?

    The 16-mile-wide Swift-Tuttle comet — the progenitor of the Perseid meteor shower —hurtles through space at about 36 miles per second, more than 150 times the speed of sound.

    If a comet of this size struck Earth, then the energy of the impact would be about as much as 300 times that of the asteroid that scientists believed wiped out the dinosaurs, Donald Yeomans, a senior research scientist at NASA's Jet Propulsion Laboratory, told LiveScience.

    And the size of a comet or asteroid isn't the only thing to consider with cosmic collisions. While the impact of the comet would be pretty destructive, the brunt of the damage would come from the gases it released in Earth's atmosphere.

    Sulfur dioxide would initially cause cooling, and then carbon dioxide would lead to long-term warming, LiveScience writes. An event like this would likely cause the planet's climate to change drastically, leading to mass extinctions around the globe.

    A comet colliding with Earth wouldn’t necessarily signal mass extinctions and the end of human civilization, though.

    While a comet landing smack dab in the ocean could trigger earthquakes and tsunamis, its atmospheric effects would actually be eased by the ocean. Considering that 70% of Earth is covered in ocean, our odds aren't terrible.

    But let's hope that we don't have to roll the dice anytime soon.

  • The Story of Comets, Part One: As Above, So Below


    Over the course of a century, three men cracked the ancient mystery of comets, transforming them from harbingers of death to mundane celestial objects: Tycho Brahe, Isaac Newton, and Edmond Halley. This is their story.

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  • All About Comets for Kids: Astronomy and Space for Children - FreeSchool


    Comets are visitors from the outer reaches of the solar system, and sometimes give a spectacular show to stargazers on earth. In deep space, a comet may look like an asteroid - just a lump of space rock - but as it heads towards the inner solar system and is heated by the sun, ice on the nucleus begin to sublimate and dust and gas are released to reveal a tail. Learn about the origin of the word 'comet,' famous comets in history, and more in this educational video!

    Like this video if you want to see more videos about SPACE!

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    Music: Jaunty Gumption, The Other Side of the Door - Kevin MacLeod (

    Image and Video Credits:
    Observing Comet Siding Spring at Mars, 3000 Comets for SOHO, What is a Sungrazing Comet?, How to Cook a Comet by NASA's Goddard Space Flight Center Comet Siding Spring: A Close Encounter with Mars by NASA Jet Propulsion Laboratory

    Journey to the surface of a comet by ESA

    Comet Impact 1994 Animation Reel by NASA STI Program

    Comet Hale-Bopp over Munich by Hans Bernhard

    Polaris_and_Comet_Hyakutake by Rick Scott and Joe Orman

    A comet low in the sky, possibly C/2011 L4 (Pan-STARRS) by G. Brammer/ESO

    Comet Lovejoy over Santiago de Chile by ESO/Yuri Beletsky

    Comet Bradfield from Cactus Flats in NE Colorado by TheStarmon

  • Documentary Comet 2017 HD - Space Mysteries Comets Target Earth Full Ep 1 of 2


    We always have to keep in mind that a Documentary, after all, can tell lies and it can tell lies because it lays claim to a form of veracity which fiction doesn't. Some of the documentaries are made just to discredit some particular person, party, organization, system etc, but most of them here on TDF are non biased, without prejudice and worth watching.

  • Great Floods and Comets


    Earlier this century, satellite images made by Landsat 7 revealed four chevron-shaped land features on the southwest coast of Madagascar, 180 meters high and up to 5 kilometres inland.

    The striking scenery, formed by enormous wedge-shaped sediment deposits called chevrons, has been hypothesized as providing evidence of a megatsunami, caused by a celestial object crashing into the Indian Ocean. The chevrons seem to point to a feature called the Burckle crater, that lies in deep ocean about 1.700 kilometres east-southeast of the Madagascar chevrons.

    This is thought to be the impact crater, and is estimated to be 4.800 years old. The chevrons in Madagascar are filled with melted microfossils from the bottom of the ocean, but decisive evidence in the form of layers of glassy droplets and fused rock in sea-core samples has not been found yet.

    The impact of the huge comet or asteroid must have been a catastrophic event. It would have sent a series of 200-meter-high tsunamis crashing against the coastlines and injected plumes of superheated water vapor and aerosol particulates into the atmosphere. For about a week, material ejected into the atmosphere would have plunged the world into darkness.

    Legends and myths recounted in the Pacific and indigenous South American cultures tell of a Great Flood similar to the one from the Sumerian Epic of Gilgamesh and the Bible. All those stories have some elements in common: a boat should be loaded with living material, when it finally hit land again some sort of bird is sent, and afterwards a sacrifice is made to the gods. As far as can be ascertained, the dates given by the various myths point to a period around 3000 BC.

    After studying 175 flood myths from around the world, archaeologist Bruce Masse found two stories of particular interest. A Hindu myth describes an alignment of the five bright planets that has happened only once in the last 5.000 years, and a Chinese story mentions that the great flood occurred at the end of the reign of Empress Nu Wa. Cross-checking historical records with astronomical data, Masse came up with a date for the event: May 10, 2807 BC.

    Many people at that time must have lost their lives due to the disastrous events. The floodmyths usually put the blame for all this on a race of people called Giants. In the Bible it says: The sons of God came in to the daughters of men, and they bore children to them. Those were the mighty men who were of old, men of renown (Genesis 6-4).

    Maybe this refers to an ancient culture of fairly tall people with a highly developed civilization who were therefore considered to be giants both physically, as well as intellectually and spiritually. The Book of Enoch, an ancient Jewish religious work that is not part of the biblical canon, gives a few more details about the Giants.

    According to Enoch, they were the fruit of interbreeding of the Watchers or Fallen Angels with women, and thus became half man half god. The Great Flood was their punishment for having knowledge of astronomy, metallurgy, arms, the weather and also herbs and root cutting, which indicates the use of Ayahuasca or other types of hallucinogenic drugs.

    A connection has been suggested between the Watchers and the spread of Indo-European languages. Today, the Indo-European language group ranges from Hindi and Persian to Germanic, Latin and Slav languages like English, Spanish and Russian. In their various mythologies, from Hindu myths to Norwegian sagas, striking similarities are present as well.

    They seem to originate from a nomadic people, that lived north of the Black Sea in what's now known as Ukraine some 6.000 years ago. They are known for building Kurgans (burial mounds) and were the first to domesticate horses. They are believed to have invented the wheel, although this is not quite certain. In any case, they were skilled horse- and chariot drivers and must have been rather tall.

    Climatological and geological data show that there have been many major floods in the past and proof of a Biblical flood is very hard to find. How the story of the Great Flood spread itself around the whole world is also unknown, but the amount of worldwide trade and cultural interaction that went on in ancient times could be seriously underestimated. Compare it to pizza: everybody all over the world likes it but that doesn't mean we all descended from Italians.

    Sources: Crash Course - Noah's Ark and Floods in the Ancient Near East
    NASA Goddard - Massive Crater Discovered Under Greenland Ice

    Music: Jean Michel Jarre - Oxygene part 6

    Are Dragons an Image of Comet Impacts?

    Planets, Gods and the Days of the Week

  • Introduction to Comets - How They Form and How Comets Work


    All about comets! What they are, how they formed, what we've learned from them by studying them up close.

  • What are Comets? | Sci Guide | Head Squeeze


    Martin Archer tells us everything you need to know about Comets. PS keep an eye out for Comet Panstarr from March 7th 2013.

    Sci Guide:
    Taking a twist on the latest science and tech news, our experts unravel some bizarre sideways tangents and discuss the latest gadgets like Google Glass, how ears might give us power in the future, and reveal the latest debates on the Big Bang Theory.

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    Are Comets rare?
    Biggest Comet to Date:

  • What did the Halley Armada discover around Halleys Comet? Giotto, VeGa 1 & 2, Suisei and Sakigake


    The Halley Armada, Giotto, Vega 1 and 2, Suisei and Sakigake, all visited Halley's Comet at roughly the same time in 1986. What did they discover? Why was this such a groundbreaking mission?

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  • HALLEYS COMET | Above & Beyond #12


    In this documentary episode, we explore the astrological phenomenon of a recurring comet in Earth's orbit, first discovered by Edmond Halley.
    Subscribe for more fascinating documentaries.

  • Four Stunning Comets are Racing Through the Inner Solar System Right Now - Eyes On The Skies


    Four bright comets are racing through the inner solar system right now, and they are all relatively easy to see with binoculars.

    Backyard astronomers around the world have been keeping tabs on these space intruders as they approach the sun, and some of the comets show tantalizing signs that they will soon brighten to at or near naked-eye levels.

    Comet ATLAS (C/2019 Y4) continues to shed fragments while slowly fading and becoming more diffuse. But it ain't dead yet!

    Comet SWAN (C/2020 F8) is presently 8th magnitude, compact, and brightening steadily as it plows across Piscis Austrinus at dawn for Southern Hemisphere observers. Soon it will swing northward, making its first appearance in Aquarius at 7th magnitude for southern U.S. observers by month's end.

    On May 12 it will be closest to Earth at a safe distance of about 83.3 million km (51.7 million miles). Perihelion occurs on May 27th at a distance of 64.3 million kilometers (39.9 million miles).

    A second ATLAS comet has shown remarkable staying power. Discovered on December 16, 2019, Comet ATLAS (C/2019 Y1) began life as an 18th magnitude blip. It gradually brightened to around magnitude 8.2 by mid- April. Closest approach to Earth at 1.1 AU occurs on May 3rd. Perihelion occurred on March 15th.

    Comet PanSTARRS (C/2017 T2) is currently in the constellation Camelopardalis. Its latest observed magnitude is 8.4. From dark skies it's relatively easy to see in small telescopes and binoculars. Like comet Atlas Y4 and comet ATLAS Y1, COMET PanSTARRS is a circumpolar object and visible all night long from mid-northern latitudes.
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  • How the Universe Works Comets Frozen Wanderers Season 2 Episode 4 YouTube


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  • Things You Probably Didnt Know About Comets


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    In this video, we will talk about comets!

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  • Comets 101


    Brush up on your comet knowledge with this astronomical crash course.

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  • The Comets Tale - BBC


    The Comet's Tale ©BBC UK

    Ancient civilisations thought comets were Gods. They believed them to be bringers of life or harbingers of doom - these strange, magical, mysterious things that moved through the sky, fiery streaks of light that tore across the heavens.

    Isaac Newton was the first to make sense of comets and to him they were the key to unlocking the secrets of gravity - nothing to do with an apple. Hundreds of years later a new breed of space missions are visiting comets, travelling millions of miles to touch down on these tiny balls of rock flying through space at 20,000 mph. The spectacular images we now have are showing us what comets are really made of, where they come from and their often surprising influence on events on the Earth.

    What they reveal is that our ancestors may have been right all along and that comets and meteors really are like gods. They have brought terrible destruction to the Earth and may one day do so again. But they also may have brought life itself.

    Michael Lachmann
    Matthew Barrett

  • Snowy Dirt and Solar Bursts: The Story of Comets, Part Two


    How we finally learned that comets were made of water. It took a surprisingly long time.

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  • Документальні фільми українською Загадки планети Комети / Planet science Comets


    Документальні фільми українською Загадки планети Комети / Planet science (Naked Science) Comets

    З точки зору науки» (англ. Naked Science) - з 2004 року американський науково-популярний і документальний фільм на телеканалі National Geographic Channel. Серіал присвячений актуальним науковим і технологічним питанням, загадок і проблем сучасності. Розглядаються як визнані історичні факти, так і надприродні і паранормальні події, природні катаклізми та катастрофи. До висвітлення цієї тематики залучаються фахівці в даній області знань. Фільм знятий з використанням спецефектів, що дозволяє забезпечити ефект присутності.

  • Classroom Aid - Comet Orbits


    Text at

    In this segment of our video book, we cover the Sentinels of the Heliosphere fleet; the distance to the edge of our Sun’s solar wind; the Aurora Borealis, Comets, the Kuiper Belt and the Oort Cloud.

    We start by defining the limits of the Sun’s influence, including the Termination Shock, Heliopause, Heliosheath, and the Bow Shock. Voyager 1 and Voyager 2 progress is reviewed.

    Next, we cover the near-Earth fleet of satellites Hinode, RHESSI, TRACE, and FAST; the Magnetosphere satellites Cluster 1 through 4 plus Geotail; the Sun observers Stereo A and Stereo B; the solar wind observers orbiting Lagrange Point 1 – ACE, Wind, and SOHO; and back to the Magnetosphere with THEMIS A through E; and back again to Voyager 1 and 2. We conclude with a look at the big November 2011 solar storm observed by Stereo.

    We then cover the nature of the aurora Borealis and aurora Australis. This includes the Bohr atomic model where we explain the quantum jumps in high altitude Oxygen atoms that create photons.

    Next we cover what a comet is and the history of comets including the Great Comet of 1577 studied by Tyco Brahe and the many comets that became Halley’s Comet. We then examine comet orbits including the long period comets Siding Spring, Hale-Bopp and Lovejoy 2014, and the short period comets 67P, Encke and Halley’s Comet.

    These two kinds of comet orbits along with evaporating comets leads us to the Kuiper Belt and Oort Cloud as areas that generate new comets. We end the segment on comets with a look at Shoemaker Levy crashing into Jupiter and the Rosetta Mission to 67P.

    We conclude with a review of the Solar System distances we have covered in this and the previous segments.

  • Comet SWAN - C/2020 F8 - as seen from New Zealand


    A video about a comet that's starting to be visible in the early morning sky with binoculars - and even the naked eye from New Zealand: Comet SWAN. Look low down, not far above the southeast - east -north-eastern horison just before it starts getting light - about 5:15 am. It'll be gone from our Aotearoa sky by 18-20 May. Warning - it's not a bright, flashy comet with a long tail... PS - also look for meteors (shooting stars) from Aquarius!
    For a map, see
    Cheers, John Drummond, Gisborne Astro Tours

  • Comet Atlas is here


    We have a good chance for another naked-eye comet (maybe)

  • Special Updated July 2020 Nightwatch: Comet NEOWISE


    Watch this video to learn how to spot Comet NEOWISE in the July's night sky!

  • Comet Neowise visible to the naked eye all night long


    The comet Neowise is now visible to the naked eye all night long. A really fantastic event that you shouldn't miss if you have clear skies.

    Mittlerweile ist der Komet Neowise die ganze Nacht über mit bloßem Auge sichtbar. Ein wirklich fantastisches Ereignis, dass man sich nicht entgehen lassen sollte, wenn man klaren Himmel hat.

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  • How to Pronounce Halley’s Comet?


    Listen and learn how to say Halley’s Comet or Comet Halley correctly with Julien, how do you pronounce free pronunciation audio/video tutorials.

    What is the Halley’s Comet and when will it be next visible from Earth? Halley's Comet or Comet Halley, officially designated 1P/Halley, is a short-period comet visible from Earth every 75–76 years. Halley is the only known short-period comet that is regularly visible to the naked eye from Earth, and the only naked-eye comet that might appear twice in a human lifetime.
    It will be visible next (Predicted next perihelion) on July 28, 2061, and was last seen from Earth in the inner parts of the Solar System in 1986. Source:

    Learn how to say wine words in English, French, Spanish, German, Italian, and many other languages with Julien Miquel and his pronunciation tutorials! In the world of words and the diversity of accents and local dialects, some words can be extremely hard to pronounce.

    Julien’s instructional and educational videos make pronunciation easier as I detail the correct pronunciation as native French speaker but also fluent speaker of French, English, Spanish and Italian.
    -If you found this video helpful please like the video to support my work.
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  • OMEN? Comet C2020 F8 SWAN rapidly brightening, now visible to naked eye


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    The fair use doctrine in U.S. copyright law allows individuals to use copyrighted material to create original works. It includes criticism, news reporting, research, and derivative works.

    Not for Children under 13 years of age


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  • What is a Comet? - Celestial Bodies Facts | Geography for Kids | Educational Videos by Mocomi


    presents: What are comets?

    Comets are small celestial bodies. Scientists cannot seem to agree on whether comets are dirty snowballs or snowy dirtballs because of the mixture of ice, gas and dust that they comprise. They are different from asteroids because they are huge balls of ice and gas. Comets are said to originate from the Oort cloud, a group of icy bodies in the outer solar system. They have remained largely unchanged since they formed, which is why scientists are very fascinated with them and the ancient material they carry.

    Unlike meteoroids and asteroids, comets have been known to humanity since we were able to record our past- probably because of their distinct shape and tail and the fact that they would appear from nowhere and disappear just as mysteriously. Early sightings of comets have been recorded in various cultures around the world and were considered bad omens- such as the death of nobility, famine or even attacks from the heavenly realm.

    Parts of a Comet
    1. Nucleus
    2. Coma
    3. Dust Tail

    Famous Comets
    1. Halley's Comet
    2. Comet Hale-Bopp
    3. Comet Lovejoy

    #Comet #Facts #Geography

    For more information about Comets, read:

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  • How to See Comet NEOWISE Before it Fades Away


    It finally happened. We got a naked eye comet in 2020.

    Comet NEOWISE is putting on a spectacular fireball show in the night sky. Never heard of it, The glowing-tail beauty has been wowing comet watchers around the world this week. Comets don’t come streaking our way all that often, at least not bright ones you can see with the naked eye.

    It has been falling toward the Sun for more than 3,000 years, and passed just 27.4 million miles from the Sun, inside the orbit of Mercury on July.

    It’s now fading slightly as it exits the Solar System, though since it’s getting slightly closer to Earth, it ought to remain relatively bright for a while yet. Comet NEOWISE actually gets closest to Earth on July 23, when it will be 64 million miles away from earth.

    Why that name?
    The comet’s official name is C/2020 F3. The telescope’s acronym, NEOWISE, which means Near-Earth Object Wide-field Infrared Survey Explorer, was added to simplify it.

    In its discovery images, Comet NEOWISE appeared as a glowing, fuzzy dot moving across the sky even when it was still pretty far away. As soon as scientists saw how close it would come to the sun, they had hopes that it would put on a good show.

    The telescope first started taking pictures in December 2009, and has been producing millions of infrared images of distant comets and asteroids ever since.
    NASA Science Live will air an episode about NEOWISE at noon Pacific time Wednesday on all its social media channels.

    Why does Comet NEOWISE have a tail?
    In the past few weeks, NEOWISE has developed a spectacular, curving tail composed of dust particles ejected from the main body of the comet as it is warmed by the sun. This dusty trail catches sunlight, causing the comet to shine in the night sky.

    Its tail is about three miles across, and looks great in a pair of binoculars.

    What’s the best time to see the comet?
    Last weekend, NEOWISE was visible in the pre-dawn hours. Now it has flipped to evening mode, making for more dramatic viewing against the dark night sky. So peel yourself away from Netflix and go outside for a look. If you miss it, this comet won’t be back for another 7,000 years.

    NEOWISE will be brightest about an hour and a half after sunset between now and Sunday. Look to the north-northwest and it should be about 10 degrees above the horizon. It will come closest to Earth on July 22. The sky will be good and dark because the moon is in crescent mode and won’t cast light that could ruin your view.

    You should be looking for a faint, fuzzy point of light with a fainter, fuzzier tail extending upward from it.

    The comet will begin to fade later in July, though still be visible with a small telescope until it disappears to the outer solar system around mid-August.

    Best ways to see the comet.

    Seek a dark spot far from city lights. Light pollution in urban areas creates a big obstacle when it comes to stargazing. You could drive to high points for some darkness.
    Haze, smoke, clouds and fog banks can be obstacles to seeing NEOWISE too. Keep trying on subsequent evenings.
    You should be able to see the comet with the naked eye, but binoculars or a small telescope could help.

    Credit: NASA/ESA

  • ScienceCasts: Comet ISON Meteor Shower


    Sungrazing Comet ISON, expected to become a bright naked-eye object later this year, might dust the Earth with meteoroids in early 2014. Researchers discuss the possibilities in this week's ScienceCast.

  • Comet to be seen from Earth/48 Hours Away. Naked Eye.


    Watch the Close Approach with the naked eye.
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  • A Bright Comet is Falling Toward the Sun, and it could Become a Naked-Eye Object - C/2020 F3 NEOWISE


    NAKED-EYE COMET NEOWISE? Here we go again. A comet is falling toward the sun, and it could become a naked-eye object after it skims past the orbit of Mercury on July 3rd. Amateur astronomers taking pictures of the Comet NEOWISE as it is approaching the Sun. At the time, its visual magnitude is near +7.0, below the threshold for naked-eye visibility.

    It might not look like much now, but this comet could blossom in the weeks after perihelion (closest approach to the sun). Forecasters say Comet NEOWISE might become as bright as a 2nd or 3rd magnitude star. Northern hemisphere observers would be able to easily see it in the evening sky in mid-July.

    At this point, you may be experiencing a feeling of déjà vu. Almost the exact same forecast was issued for Comet ATLAS (C/2019 Y4) in March and Comet SWAN (C/2020 F8) in May. Both comets dived toward the sun and … instead of blossoming, died. Intense solar heat can do that to a fragile ball of ice.

    Michael Mattiazzo, who is one of the world’s most experienced amateur comet observers, thinks Comet NEOWISE could turn out better. I'd say there's a 70% chance this comet will survive perihelion, he says, basing his guess on the stability of the comet’s light curve, which sets it apart from Comets ATLAS and SWAN. Hopefully, Comet NEOWISE could be a case of 'third time lucky' for northern hemisphere observers.

    We'll know soon enough. On June 22nd, the comet will enter the field of view of SOHO's C3 coronagraph–a space-based instrument that blocks the glare of the sun to reveal nearby stars, planets and comets. For a whole week, astronomers will be able to monitor Comet NEOWISE as it approaches the orbit of Mercury. If it falls apart, the event may be visible in the images. Ditto if it survives.

    Stay tuned!

    Music credit: YouTube Audio Library

  • Naked Eye Comet possible at End of November Quadruples in Brightness! C/2018 V1!


    COMET C/2018 V1 (Machholz-Fujikawa-Iwamoto)
    This triple Amateur found Comet will make its closest approach to Earth on November 27th & its closest approach to the Sun on December 5th. It was at an 8.0 Magnitude brightness at the time of the making of this videro. November 11th. MPEC 2018-V151:
    Stay Cool.
    God bless Everyone,


    PO BOX 35946
    @newTHOR on twitter


    AMATEUR ASTRONOMERS FIND A BRIGHT NEW COMET: There's a new comet in the morning sky. Discovered just last week by three amateur astronomers--one in Arizona and two in Japan--Comet Machholz-Fujikawa-Iwamoto (C/2018 V1) has quadrupled in brightness over the past few days. It is now glowing like a fuzzy 8th magnitude star in the constellation Virgo, reports Michael Jäger of Turmkogel, Austria, who photographed it on Nov. 11th:

    The discovery of a comet by amateur astronomers is a rare event nowadays because robotic Near-Earth-Object search programs usually catch them first, he says. My special congratulations to the three discoverers.
    Comet Machholz-Fujikawa-Iwamoto appears to be a first-time visitor to the inner solar system. It is plunging toward the sun on nearly-parabolic orbit that will take it just inside the orbit of Mercury. Closest approach to the sun (0.38 AU) is on Dec. 3-4; closest approach to Earth (0.67 AU) is Nov. 27th.

    Fresh comets like this one are notoriously unpredictable. They can surge in brightness, seeming to promise a spectacular display, when suddenly they fizzle as fragile deposits of ice are exhausted by solar heat. No one knows if Comet Machholz-Fujikawa-Iwamoto will even become a naked eye object. At the moment it is an easy target for backyard telescopes with the promise of ... unpredictability. Stay tuned!

  • Randall Carlson Shows Niagara Falls Is Dwarfed By a Comet Flood Cataract


    This is a clip of the full episode:

    Randall Carlson Latest Science for 2020

    In this clip, Randall Carlson shows a cataract the exact shape of Niagara Falls, but multiple times its size as a subset of the the evidence trail which supports, if not proves, the Earth was struck by a series of comets just over 10,000 years ago, which ended the last ice age suddenly and caused catastrophic flooding internationally (and especially in North America).

  • How to Make a Comet with Homeschool Astronomy Lesson Supercharged Science


    Let's take an in-depth look at some of the most beautiful objects in our solar system - COMETS!

    You can see comets with telescopes, binoculars, and sometimes even with your naked eyes.

    Why do we study comets? They are small objects that allow us to study the outer solar system and deep space without actually having to go there because they conveniently bring in material to us as they pass the sun.

    If you found this helpful and you find yourself thinking, “Hey, you know, I want this person to teach my kids science for me, and to create my curriculum lessons for me…” then we can do just that.

    Go to

    When you get there, you’ll see a video that shows you the science curriculum that I developed and teach.

    If you like what you see on that website, just fill in the form below the video and your kids can get started today doing real hands-on science with everyday materials.

    Thanks for watching!
    Supercharged Science
    Homeschool Science Curriculum

    P.S. By the way, if you know anybody that might find this content useful or helpful, please share it! Thanks so much!!

    P.P.S. You can connect with me on:

  • ScienceCasts: Comet ISON Meteor Shower


    Visit for breaking science news.

    Sungrazing Comet ISON, expected to become a bright naked-eye object later this year, might dust the Earth with meteoroids in early 2014. Researchers discuss the possibilities in this week's ScienceCast.



    A naked eye comet hanging in the twilight sky at dawn or at dusk is lovely sight. In this video, Dr John Mason talks about comets in general and about the latest cosmic visitor to our skies - Comet C/2020 F3 NEOWISE. Watch the video, grab your binoculars and take a look for yourself at the brightest comet to be visible from the British Isles since 1997.

  • Halleys Comet hindi


    Hello friends in this video we will see about the famous Halley's Comet which was discovered by Edmond Halley.
    It is a short-period comet visible from Earth every 74–79 years. Halley is the only known short-period comet that is regularly visible to the naked eye from Earth, and the only naked-eye comet that might appear twice in a human lifetime. Halley last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061.
    So friends watch this full video till the end
    Huygens wave theory-

    for more video.




    From the furthest reaches of our Solar System, comets occasionally make dramatic appearances in our sky. Comets contain a nucleus made of water, ice, dust and frozen gases. Studying what a comet is made of helps scientists learn more about the origins of our Solar System. Check out this Adler's webisode featuring educator Kyle Sater and astronomer Mark Hammergren as they create a comet with household materials (and dry ice)!