Planetary Protection: Safeguarding Worlds from Biological Contamination

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

Origin of Life: From Chemical Soup to Living Systems

Astrophysics for People in a Hurry

Molecular Evolution: From Simple Chemicals to Complex Life

Cosmos

Biogeology: Life's Interaction with Planetary Processes

The Science of Interstellar

Extraterrestrial Life: The Search for Biology Beyond Earth

Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium

Planetary Habitability: Factors That Make Worlds Suitable for Life

Human Universe

Prebiotic Chemistry: The Chemical Steps Toward Life's Beginning

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

Terraforming: Engineering Planets for Human Habitation

Origins: Fourteen Billion Years of Cosmic Evolution

Biosignatures: Detecting Life's Chemical and Physical Traces Across the Cosmos

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

Xenobiology: Understanding Possible Forms of Alien Life

The Planets