“In space, no one can hear you scream.”
First of all, space is really fucking vast.
And it doesn't end there. So, where does the universe end? No one knows exactly – hell, we don't even know if it ends at all.
Black holes are regions in space-time that have so much mass making the gravity there so strong, nothing we know of can escape – not even light. That's right: there is literally NO ESCAPE.
en.wikibooks.org / Creative Commons
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