31:37

The Stanford Torus Space Habitat

35:55

Stargates

31:10

Cyborg Civilizations: Humanity’s Future or Alien Reality?"

1:04:57

Coexistence with Aliens

1:53:59

The Megastructure Compendium

43:22

Defending Earth

29:07

Most GENIUS Corellian Ship Design? | Ghost + Phantom COMPLETE Breakdown

2:08:59

SECRETS OF THE CLONE WARS: 2 Hour Lore Compilation