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It’s #BlackHoleFriday! 
What is a black hole? Hint: it isn't actually a hole! When matter is squeezed into a tiny space, gravity keeps even light from escaping!
Learn 5 things on the basics of a black hole: https://youtu.be/26ilf0jO_ZM #BlackFridaypic.twitter.com/phJh08QXLt
But if you must, here’s a travel guide to help you survive the trip: https://youtu.be/aMTwtb3TVIk
There are different kinds of black holes! Some are the endpoint of a massive star's life.
Mystery #1 for #NASAWebb, how did the first black holes form? https://go.nasa.gov/2JoF5H6
#BlackHoleFriday #BlackFridaypic.twitter.com/5E1MSsS03g
Some black holes are supermassive and lie at the heart of galaxies.
Mystery #2 for #NASAWebb, what is the relationship between black holes and their host galaxies? https://go.nasa.gov/36euKXo
#BlackHoleFriday #BlackFridaypic.twitter.com/wsdIlYiL2O
Mystery #3: What happens to the black holes at the centers of colliding galaxies?
#NASAWebb will investigate: https://go.nasa.gov/39mJO7u
#BlackHoleFriday #BlackFridaypic.twitter.com/ArTTj0skyc
Spagettification is a nasty thing.
Thank you Mr. Cooper.
Jokes aside, thanks to Christopher Nolan, Kip Thorne, Katie Bouman and her team for showing how a Blackhole looks like.
Also, thanks to all astronauts 
“Consider a universe encased in a boundary like a snow globe. Apart from having a big wall around it, the interior is basically like our universe: It has gravity, matter, and so forth.”
“The boundary, too, is a kind of universe. It does not have gravity and, being just a surface, lacks depth. But it makes up for that with vibrant quantum physics, and all in all it’s exactly as complex as the interior.”https://www.quantamagazine.org/the-black-hole-information-paradox-comes-to-an-end-20201029/ …
Seems like black holes would make space exploration very dangerous.
But they could also be used as a power source in the far future (assuming 40k doesn't pan out).
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