Abiogenesis: The Scientific Study of Life's Origins

A Brief History Of Time: From Big Bang To Black Holes

Biogeology: Life's Interaction with Planetary Processes

The Fabric of the Cosmos: Space, Time, and the Texture of Reality

Extraterrestrial Life: The Search for Biology Beyond Earth

The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics

Habitable Zones: Understanding Where Life Can Thrive in the Universe

The Planets

Origin of Life: From Chemical Soup to Living Systems

UFOs: Generals, Pilots, and Government Officials Go on the Record

Extremophiles: Life in Earth's Most Hostile Environments

Until the End of Time: Mind, Matter, and Our Search for Meaning in an Evolving Universe

Life Detection: Methods and Technologies for Finding Biology in Space

Seven Brief Lessons on Physics

Ocean Worlds: Exploring Water-Based Habitats in Our Solar System

Existential Physics: A Scientist's Guide to Life's Biggest Questions

Microbial Life: First Biology and the Search for Simple Life Forms

The Astronomy Book: Big Ideas Simply Explained

Molecular Evolution: From Simple Chemicals to Complex Life

For the Love of Physics: From the End of the Rainbow to the Edge of Time---A Journey Through the Wonders of Physics