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)
39:25
Where Does EVERYTHING Come From? - Ask a Spaceman!
13:39
¿Qué es una Paradoja?
38:29
Why Does Light Slow Down? - Ask a Spaceman!
10:31
Why We Should NOT Look For Aliens - The Dark Forest
18:33
Neil deGrasse Tyson on "Interstellar"
39:18