How the Universe Works S1E3: Galaxies (aka Alien Galaxies)
- Aired: 2010-05-10
- Time: 22:00:00
- Runtime: 60 minutes
Overview
Galaxies, home to stars, planets and us, come in all shapes and sizes. Witnesses the evolution of galaxies; from clouds of cold gas floating in the voids of space 13 billion years ago, to the magnificent spirals that fill our night sky.