Pourquoi la vie extraterrestre pourrait être notre perte - Le Grand Filtre
10:29
Are There Lost Alien Civilizations in Our Past?
6:21
The Fermi Paradox — Where Are All The Aliens? (1/2)
20:44
The Man Who Killed Millions and Saved Billions (Clean Version)
9:41
The Origin of Consciousness – How Unaware Things Became Aware
20:00
Parallel Worlds Probably Exist. Here’s Why
17:55
We Might Find Alien Life In 2249 Days
10:42
What Do Alien Civilizations Look Like? The Kardashev Scale
23:34