The Solution to the Twin Paradox - Ask a Spaceman!
50:21
Top 10 WORST Places to Live in the Universe - Ask a Spaceman! (collab w/ John Michael Godier)
16:20
Einstein, Gravity, and the Twin Paradox (Einstein's 1918 Solution)
16:50
Is It Time to End SETI? - Ask a Spaceman!
16:46
What Time Dilation ACTUALLY Is In Relativity (Hint: It has nothing to do with time)
17:17
The Weird Weakness of Gravity - Ask a Spaceman!
26:02
Is the Universe a Simulation? - Ask a Spaceman!
2:32:23
What Is Reality?
13:39