An Informal Review of Space Exploration - Kbog. A critical look at the value of space exploration.

Space Debris - Creon Levit. Presentation about the millions of space debris particles clouding the orbit of Earth.

Why The Risks of Space Collusions is Skyrocketing - Moriba Jah. On space collusions, debris, and what to do about them.

The Cosmic Zoo - Dirk Schulze-Makuch.

Colder Wars - Gwern. On the game theory of space war.

Grabby Aliens - Robin Hanson. As video recording - Foresight Institute.

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