Beyond the singularity: The search for extraterrestrial technologies | Andrew Siemion | TEDxBerkeley
17:30
Why We are Alone in the Galaxy | Marc Defant | TEDxUSF
10:25
Extraterrestrials - Why They're Almost Certainly Out There... | Chris Crowe | TEDxJohnLyonSchool
14:54
The Technological Singularity | Jonas Witt | TEDxUniPotsdam
11:58
If aliens can hear us, maybe they can help us | Jonathan Jiang | TEDxKC
15:57
Are We Alone? When Will Earthlings Find ET? | Dan Werthimer | TEDxSFState
17:58
The Exploration and Colonization of Mars: Why Mars? Why Humans? | Dr. Joel Levine | TEDxRVA
17:42
A Theory You've Never Heard Of | Michael Robinson | TEDxUniversityofHartford
16:06