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- Wed Oct 31, 2012 10:47 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: VdB 152: A Ghost in Cepheus (2012 Oct 31)
- Replies: 21
- Views: 3168
Re: APOD: VdB 152: A Ghost in Cepheus (2012 Oct 31)
... However, the Andromeda Galaxy is approaching the Milky Way at about 100 to 140 km/s. This exceeds the dark energy expansion fractional component of the ~58 km/s hypothetical Hubble expansion . Thanks, that's interesting but somehow unsatisfying as to explain how galaxies expanding from a common...