Look up “the great attractor”.
The “big crunch” is the (probably incorrect) hypothesis that there’s enough mass to pull the universe into a single black hole - where everything is eaten by black holes, even all the black holes (nothing to do with the great attractor)
xenoclast@lemmy.world 2 years ago
They do, but space is very big, and gravity is relatively weak in comparison.
The strength of gravity drops of exponentially with distance. Which is hard to imagine because we’re stuck the earth so solidly by gravity… but that’s just cuz we’re on it’s surface.
For a star to consume another star they need to be really close.
This is made even more difficult when you consider they’re all moving through empty space really really fast.