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zakruti.com » Knowledge, science, education » Crash Course
Galaxies, part 2: Crash Course Astronomy #39

Galaxies, part 2: Crash Course Astronomy #39

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Rating: 4.0; Vote: 1
Active galaxies pour out lots of energy, due to their central supermassive black holes gobbling down matter. Galaxies tend not to be loners, but instead exist in smaller groups and larger clusters. Our Milky Way is part of the Local Group, and will one day collide with the Andromeda galaxy. Clusters of galaxies also clump together to form superclusters, the largest structures in the Universe. In total, there are hundreds of billions of galaxies in the Universe. Crash Course Astronomy Poster
Date: 2022-04-04

Comments and reviews: 7


When I see images or renderings of super clusters and the web-like filaments that make up galaxy patterns in space, I can't help but feel like what we're seeing is a microscopic view of a lifeform, like a neural network. What we think of as the most mind-shatteringly macro end of the universe is actually the most mind-shatteringly micro end from a different perspective. We observe the vastness of the universe and the tinyness of quantum mechanics and perceive ourselves to be somewhere in the middle. But I feel as if there really is no end to the spectrum, observe the universe from even farther out and it's the brain of a lifeform who feels insignificant in the vastness of the universe they can see, and in the opposite direction, the subatomic particles we observe are actually galaxies full of life.
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My mind-s bugging me with a weird question. What if blackholes have charges or poles or something that may repel each other? Will there be a chance where instead of merging into a -Milkdromeda- they repel each other and form peculiar or irregular shaped galaxies?
It-s just a little thought anyway. I wish I-ve had known Crashcourse since 4 years ago. With plenty of cool, still relevant videos for 2020, you guys deserve more viewers!

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It's kinda like a video game where you try to complete all the achievements, but everytime you almost do it, an update arrives with more achievements to complete. Anyway, despite you saying i am significant, this episode made me feel insignificant haha: D
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I propose the name Androlact: -andro- for Andromeda, -lact- for a Latin-derived word for milk (because -milk- just doesn-t sound cool no matter what you do to it.
Another possibility: Lactomeda. -Milk- has got to go.

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i thought that after big bang every object is moving away from the earth, since the universe is starching itself, how could this galaxy moving toward to us? Answer?
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hundreds of billions of galaxies and no other life in them hmmm? i dont buy it. theres life out there way beyond our way of ever seeing
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Isn't there something called the -Super Void-? Giant place in the background radiation empty of galaxies, clusters, or anything.
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