f_d t1_j1gva4w wrote
Reply to comment by TripleATeam in Did you know it will still take 46 billion years to cross the universe at the speed of light? 65 mph = 4.8 * 10^17 years! by NotAndroid545
The Local Group is bound together by gravity. It should stay together as long as the fundamental forces keep working like before. The rest of the universe outside that threshold will keep stretching away endlessly.
TripleATeam t1_j1gvm96 wrote
I thought it was just the galaxy that was bound tightly enough and the local group would eventually go as well? Huh. I guess I learned something.
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