Aired: Jun 9, 2010 This program examines some recent scientific theories of the universe and con...
Through the Wormhole
Season 1 Episode 6: Are We Alone?
Aliens almost certainly do exist. So why haven't we yet met E.T.? It turns out we're only just developing instruments powerful enough to scan for them, and science sophisticated enough to know where to look. As a result, race is on to find the first intelligent aliens. But what would they look like, and how would they interact with us if we met? The answers may come to us sooner than we imagine, for one leading astronomer believes she may already have heard a hint of their first eff...
