Reaching for the Moon: A Short History of the Space Race

Astrophysics for People in a Hurry

The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory

Robots In Space: Technology, Evolution, and Interplanetary Travel

Origins: Fourteen Billion Years of Cosmic Evolution

Imminent: Inside the Pentagon's Hunt for UFOs

The Extraterrestrial Species Almanac: The Ultimate Guide to Greys, Reptilians, Hybrids, and Nordics

Rocket Men: The Daring Odyssey of Apollo 8 and the Astronauts Who Made Man's First Journey to the Moon

New Scientist: The Origin of (almost) Everything

The Science of Interstellar

The Magic of Reality: From the multi-million bestselling author of The God Delusion

Space Chronicles: Facing the Ultimate Frontier

Reentry: SpaceX, Elon Musk, and the Reusable Rockets that Launched a Second Space Age

The Mars Mystery: The Secret Connection Between Earth and the Red Planet

Endurance: A Year in Space, A Lifetime of Discovery

Just Six Numbers

Isaac Asimov's Guide to Earth and Space

The Astronomy Book: Big Ideas Simply Explained

Black Holes and Baby Universes: And Other Essays

Case for Mars