Kessler Syndrome Planets
41:06
The Fermi Paradox: Imprisoned Planets
33:03
Deep Space Habitats
40:19
The Million Year Machine
32:16
La paradoja de Fermi: primogénito
44:02
Why the Dark Ages Were the Worst Time to be Alive
36:05
Humanity: Firstborn Space Civilization
36:15
The Fermi Paradox: Drake's Equation
20:12