Elon Musk will take us to Mars – will it be home? | Reinier Zeldenrust | TEDxLondonBusinessSchool
17:30
Why We are Alone in the Galaxy | Marc Defant | TEDxUSF
13:52
Walking On Mars | Nick Devereux | TEDxEmbryRiddlePrescott
20:29
Why I changed my mind about nuclear power | Michael Shellenberger | TEDxBerlin
18:49
One Year on Mars: HI-SEAS Mission IV | Carmel Johnston | TEDxCharlottesville
17:58
The Exploration and Colonization of Mars: Why Mars? Why Humans? | Dr. Joel Levine | TEDxRVA
14:14
O que é preciso para que haja vida num planeta | Dave Brain | TEDxBoulder
15:01
Have you ever imagined how interstellar travel could work? | Ryan Weed | TEDxDanubia
14:43