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

The Grand Design

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

The Science of Interstellar

A Briefer History of Time

Endurance: A Year in Space, A Lifetime of Discovery

The Future of Humanity: Terraforming Mars, Interstellar Travel, Immortality, and Our Destiny Beyond Earth

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

Accessory to War: The Unspoken Alliance Between Astrophysics and the Military

Black Holes and Baby Universes and Other Essays

Neil Armstrong: A Life of Flight

Space at the Speed of Light: The History of 14 Billion Years for People Short on Time

The Case for Mars: The Plan to Settle the Red Planet and Why We Must

Cycles of Time: An Extraordinary New View of the Universe

The Pluto Files: The Rise and Fall of America's Favorite Planet

Abduction: Human Encounters with Aliens

The Six: The Untold Story of America's First Women Astronauts

How We'll Live on Mars

Black Hole Survival Guide

Thirteen: The Apollo Flight That Failed