Supermassive black holes: most powerful objects in the universe | Martin Gaskell | TEDxMeritAcademy
19:46
Dark matter - what we're really made of | Michelle Thaller | TEDxBinghamtonUniversity
16:20
What space telescopes teach us about the universe | Amber Straughn | TEDxCapeMay
16:34
Einstein Was Right: Gravitational Waves 101 | Rainer Weiss | TEDxNatick
23:45
Fermi's Paradox and the Psychology of Galactic Empires | Matthew O´Dowd | TEDxTUWien
24:02
Is Time Travel, Especially Into the Past Possible? | Matt Szydagis | TEDxSchenectady
18:33
Consciousness -- the final frontier | Dada Gunamuktananda | TEDxNoosa 2014
17:30
Why We are Alone in the Galaxy | Marc Defant | TEDxUSF
10:25