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Detecting a black hole is a challenging endeavor for astronomers. A black hole doesn't emit any observable radiation since it cannot allow radiation to escape into space. As a result, astronomers find it incredibly challenging to observe black holes.
In space, a black hole is a region where gravity is so strong that even light cannot escape. Because the substance is compressed into such a small area, the gravity is extremely intense. When a star is dying, this may take place.
Anything that gets too close to these infinitely dense places in space will be spaghettified. Space-based black holes are regions of extreme density that produce large gravity wells. Even light cannot escape the strong pull of a black hole's gravity once it reaches a specific area.
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