How the Universe Works Season 1 Episode 3 - Galaxies (aka Alien Galaxies)

Airdate: 2010-May-10

Episode summary:

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.

About How the Universe Works series:

How the Universe Works is the greatest story ever told, the creation of everything us. The programme investigates how the Universe came into existe...Show more >