Rain of Iron and Ice:
The Very Real Threat of
Comet and Asteroid Bombardment
by John S. LewisMining the Sky:
Untold Riches from the
Asteroids, Comets, and Planets
by John S. Lewis
Anyone ever read, "Mining the sky"? Great read, talks about Helium-3 in both regolith and the upper atmosphere of Uranus/Neptune/Jupiter, the composition of asteroids, the technology needed to grab it. Also, just a fun book to read - a page turner.
Rain of Iron and Ice:
The Very Real Threat of
Comet and Asteroid Bombardment
by John S. LewisMining the Sky:
Untold Riches from the
Asteroids, Comets, and Planets
by John S. Lewis
