OSalcido Messages 66 Reaction score 0 Feb 1, 2006 #31 if everything is receding from everything... how is it that our galaxy will eventually collide with the andromeda galaxy?
if everything is receding from everything... how is it that our galaxy will eventually collide with the andromeda galaxy?
Chronos Science Advisor Gold Member Messages 11,420 Reaction score 750 Feb 3, 2006 #32 Gravity is much stronger than the Hubble flow [expansion] at 'short' [less than megaparsec] distances. The proper motion of the Andromeda galaxy puts it on a collision course with our galaxy in about 5 billion years.
Gravity is much stronger than the Hubble flow [expansion] at 'short' [less than megaparsec] distances. The proper motion of the Andromeda galaxy puts it on a collision course with our galaxy in about 5 billion years.