Star Trek: Deep Space Nine | International Space Station | Space Shuttle | European Space Agency | Kennedy Space Center | National Air and Space Museum | Space Shuttle Challenger | Hubble Space Telescope | Marshall Space Flight Center | Lost in Space | Lyndon B. Johnson Space Center | 2001: A Space Odyssey | Goddard Space Flight Center | Three-dimensional space | Space Invaders | 2001: A Space Odyssey (film) | Space: 1999 | Space Shuttle Columbia | Symphony Space | space | Euclidean space | space shuttle | Space Shuttle Challenger disaster | Space Jam | Space Shuttle Discovery | Space Shuttle Columbia disaster | Space Oddity | Spitzer Space Telescope | outer space | It Came from Outer Space |
His first role playing book was published by Iron Crown Enterprises in 1994, and he has written or contributed to books for Last Unicorn Games, Hero Games, and Steve Jackson Games, including the Star Trek role-playing game (Last Unicorn), GURPS Mars, Star Hero, and GURPS Space.