"Why we might be alone" Public Lecture by Prof David Kipping
20:21
Crowded or Lonely? The Statistics of Alien Life
20:22
The Odds of Life - THIS CHANGED MY MIND
10:25
Extraterrestrials - Why They're Almost Certainly Out There... | Chris Crowe | TEDxJohnLyonSchool
28:28
Russell's Paradox - a simple explanation of a profound problem
20:14
What if Humans Are NOT Earth's First Civilization? | Silurian Hypothesis
23:47
I Think Faster Than Light Travel is Possible. Here's Why.
13:19
Where are all the aliens? | Stephen Webb
19:48