Alien Attack!
- Episode aired Oct 6, 2010
- 44m
Are we alone in the universe or is there intelligent life on other planets? And could aliens travel through space and reach Earth? Phil Plait investigates.Are we alone in the universe or is there intelligent life on other planets? And could aliens travel through space and reach Earth? Phil Plait investigates.Are we alone in the universe or is there intelligent life on other planets? And could aliens travel through space and reach Earth? Phil Plait investigates.