The Seventh Landing: Going Back to the Moon, This Time to Stay

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

Earths of Distant Suns: How We Find Them, Communicate with Them, and Maybe Even Travel There

Endurance: A Year in Space, A Lifetime of Discovery

Drifting on Alien Winds: Exploring the Skies and Weather of Other Worlds

Imminent: Inside the Pentagon's Hunt for UFOs

Death by Black Hole: And Other Cosmic Quandaries

Planet Earth, Past and Present: Parallels Between Our World and its Celestial Neighbors

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

Europa’s Lost Expedition: A Scientific Novel

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

Lords of the Ice Moons: A Scientific Novel

The Astronomy Book: Big Ideas Simply Explained

Plato’s Labyrinth: Dinosaurs, Ancient Greeks, and Time Travelers

Astrophysics for People in a Hurry

Ice Worlds of the Solar System: Their Tortured Landscapes and Biological Potential

Picture This!: Grasping the Dimensions of Time and Space

Philip's Exploring Stars and Planets

New Scientist: The Origin of (almost) Everything

Case for Mars