S1E3
Galaxies
How the Universe Works
calendar_todayMay 10, 2010
schedule42 min
star7.8
The evolution of galaxies, from clouds of cold gas floating in space 13 billion years ago, to the vast gravitationally bound systems of today.
broadcast_on_home Networks
Science
Discovery
star Guest Stars
Lawrence Krauss
Himself
Michio Kaku
Himself
Michelle Thaller
Herself
Phil Plait
Himself