The death of large stars lead to black holes, because a star’s gravity will overwhelm the star’s natural pressure that it maintains to keep its shape.
Black Holes Are Funky.
The person who fell into the black hole’s time slows down. This is explained by Einstein’s Theory of General Relativity, which states that time is affected by how fast you are going when you’re at extreme speeds close to light.
The First Black Hole Wasn’t Discovered Until X-Ray Astronomy was Used.
Cygnus X-1 was the first black hole discovered in the 1960’s, and it’s 10 times more massive than the Sun.
V4647 Sagitarii was thought to be 1,600 light-years away, but is further away than expected. Scientists now believe that this black hole is about 20,000 light years away.
Black holes are safe to observe from a lengthy distance, but not if you get too close, which also means that it’s unlikely for a black hole to consume an entire universe.
They Are Only Dangerous if You Get Too Close.
Black holes create deep well in space that nothing has enough energy to climb back out, not even light.
Black holes literally pull the space around them.
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