This is a good reminder that galaxies are very sparse despite their solid appearance.

1. But we still have a chance of planet collidion. Nothing is impossible in the world.

2. lucky, i was really worried….

3. but the dark energy and matter is already touching, haven’t you felt it?

4. So “collide” means their assigned boundaries will overlap somewhat ?? Why don’t physicists just say this…they hype non-events more prolifically than Fox TV network.

5. Just another theory.

6. Denis English​ a galaxy collision is more than just overlapping. The stars are very unlikely to actually hit, but their orbits will be disrupted and the gas clouds will indeed collide and will likely trigger a lot of new star formation

7. Chris Dolan cool…thanks dude…well 4 billion years …from when ?? Today or when this was reported ???

8. Cool

9. interesrting

10. That’s not possible

11. Halo

12. I can’t believe it ’cause I’ll and the whole humanity will be dead by that long so ya’ll don’t worry enjoy your lives. ☺☺☺

13. Galaxy’s don’t collide and destroy each other, they tango and dance and become one bigger Galaxy fused with one another. Time it takes is millions of years and the distance between starts is unfathomable to a human life

14. اشکان

15. Beautifulphonomenon

16. 4 billion years? We’re all already dead when it’s occurred 🙁

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