55:52

Transcendence: The Fermi Paradox, Enlightenment & Singularity

31:37

The Stanford Torus Space Habitat

19:55

Why The US is Struggling to Return to the Moon

45:46

Battlefleets

31:48

Colonizing Ganymede

23:42

Ultra-Relativistic Spaceships: Racing Towards the Speed of Light

37:51

The Fermi Paradox: The Cronus Scenarios

9:31

Slower Than Light Interstellar Travel