On a collision course
NGC 2207, the larger galaxy on the  left, will eventually merge with IC 2163, its smaller neighbour. Tidal  forces generated by NGC 2207 are already distorting the smaller of the  pair.&nbsp;
The two spiral galaxies have previously come close to  colliding, 40 million years ago. IC 2163 does not have enough energy to  escape the pull from its larger neighbour forever and, billions of years  from now, only one galaxy will remain.
(Image: NASA/The Hubble Heritage Team/STScI)