The Great Architects of Mars: Evidence for the Lost Civilizations on the Red Planet

Packing for Mars: The Curious Science of Life in the Void

Penetration: Special Edition Updated

The Secret Life of the Universe: An Astrobiologist's Search for the Origins and Frontiers of Life

Nothing in This Book Is True, But It's Exactly How Things Are: The Secret History of the Earth, Merkaba Activation, and Breath Alchemy

The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos

Probabilistic Robotics (Intelligent Robotics and Autonomous Agents series)

Death on Mars: The Discovery of a Planetary Nuclear Massacre

Beyond Mars and Venus: Relationship Skills for Today's Complex World

Night Sky - A Field Guide to the Constellations