How NASA is answering the question: Are we alone? | Shawn Domagal-Goldman | TEDxMidAtlantic
17:14
Are We Alone? | Ellen Stofan | TEDxBinghamtonUniversity
16:29
Lessons from My Wife in Finding Alien Life | Douglas Vakoch | TEDxKingstonUponThames
11:58
If aliens can hear us, maybe they can help us | Jonathan Jiang | TEDxKC
24:02
Is Time Travel, Especially Into the Past Possible? | Matt Szydagis | TEDxSchenectady
17:58
Mars'ta keşif ve kolonileşme: Neden Mars? Neden insanlar? |Dr. Joel Levine |TEDxRVA
15:48
TEDxBoulder - Thad Roberts - Visualizing Eleven Dimensions
10:25
Extraterrestrials - Why They're Almost Certainly Out There... | Chris Crowe | TEDxJohnLyonSchool
17:05