Supermassive black holes: most powerful objects in the universe | Martin Gaskell | TEDxMeritAcademy
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
24:15
A 4.ª Fase da Água | Dr. Gerald Pollack | TEDxGuelphU
16:20
What space telescopes teach us about the universe | Amber Straughn | TEDxCapeMay
15:45