I poured all the galaxies in the Universe into a pool
32:24
THE HUMAN FUTURE: A Case for Optimism
9:31
Slower Than Light Interstellar Travel
14:46
I shrink 10x every 21s until I'm an atom - The Micro Universe
14:02
I put 4 Million Suns in a Black Hole over New York
13:06
HUGE Magnet VS Copper Sphere - Defying Gravity- Will a Neodymium Magnet Float Inside?
31:33
O Mais Antigo Problema Não Resolvido da Matemática
14:27
A Bold Mission to Catch Up With Oumuamua - Project Lyra
9:09