Galactic collisions | Stars, black holes and galaxies | Cosmology & Astronomy | Khan Academy
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Collision of the Milky Way Galaxy with Andromeda (forming "Milkomeda"). Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/stellar-life-topic/stellar-parallax-tutorial/v/parallax-in-observing-stars?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy Missed the previous lesson? https://www.khanacademy.org/science/cosmology-and-astronomy/stellar-life-topic/quasars/v/quasar-correction?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy Cosmology & Astronomy on Khan Academy: The Earth is huge, but it is tiny compared to the Sun (which is super huge). But the Sun is tiny compared to the solar system which is tiny compared to the distance to the next star. Oh, did we mention that there are over 100 billion stars in our galaxy (which is about 100,000 light years in diameter) which is one of hundreds of billions of galaxies in just the observable universe (which might be infinite for all we know). Don't feel small. We find it liberating. Your everyday human stresses are nothing compared to this enormity that we are a part of. Enjoy the fact that we get to be part of this vastness! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Cosmology & Astronomy channel: https://www.youtube.com/channel/UChNPnEkW8LYZ5Rwi8_A2-DA?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Comments
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why "maybe" a quasar will form? Could someone please explain this in more detail?
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I've reached into the depths of my imagination to grasp the immense time-scale and seemingly immeasurable dynamics and have come up with: "Cool".
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I just hope that if this happens the planets won't be tossed out of orbit and into the cold depths of space.
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...but... isn't the universe expanding??
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Before this will happen, our sun will have become so much of a red giant, life on earth won't be possible anymore (Not to mention the hundreds of killer asteroids that will erase all life on earth before the galaxy collision). Really, this should be one of your least worries lol.
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Oh Khan, the great and powerful, how we worship your mighty videos. Blind us with your boundless display of scientific and mathematical knowledge. ;)
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With what software have you make this animation?
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and im 12 so u need to go watch the sience channel
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the owner of this ur pretty smart but when it comes to galaxy's colliding they don't collide thy form into a small ball of mass over millions of years turns into a super nova that will form a LARGE black hole.
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there are many theories of what would happen after the sun (or star in general) expands/explodes...an acceptable one is that the sun will turn into a dwarf..investigate and read "dumass"
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like if u say super nova dislike if u say super nove For the word super nova
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you dumass it wont expand into a dwarf it was split apart dwarfs are smaller
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I'm amazed why our daughters are so focused on the sun. Mine was worried for about 1 week when she saw a video of the sun expanding and turning into a dwarf :P
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She'll never leave her room. >:3
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we be dead by then
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@XxSpaCeUnIcOrNxX The Andromeda Galaxy is approaching the Milky Way at about 100 to 140 kilometres per second (62 to 87 mi/s) (400 lightyears every million years). The Andromeda Galaxy and the Milky Way are thus expected to collide in about 4.5 billion years.
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universe sandbox anyone >:3
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Khan you seem somewhat out of your depth with cosmology.
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1 person is afraid they might witness a galactic collision!
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do you know everything?
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