Galaxies go wild

http://news.bbc.co.uk/1/hi/sci/tech/7366597.stm

The Hubble Space Telescope has captured stunning images of colliding galaxies, which have been released to mark the 18th anniversary of the telescope's launch.

The dramatic collisions trigger bursts of star formation and sometimes result in new galaxies.

Footage courtesy of Nasa, Esa and the Hubble Heritage Team (A. Evans, K. Noll and J. Westphal)