Supermassive black holes: most powerful objects in the universe | Martin Gaskell | TEDxMeritAcademy
23:45
Fermi's Paradox and the Psychology of Galactic Empires | Matthew O´Dowd | TEDxTUWien
22:31
Filling the Big Gap in Einstein’s Theory | Paul Steinhardt | TEDxCLESalon
20:10
The Unusual Earth Orbit Circling Above Our Ancient Past | Roger G. Gilbertson | TEDxColoradoSprings
16:20
What space telescopes teach us about the universe | Amber Straughn | TEDxCapeMay
16:34