Mercury

Cosmos

Studies of Pallas in the Early Nineteenth Century: Historical Studies in Asteroid Research, Edition 2

Death by Black Hole: And Other Cosmic Quandaries

Bode’s Law and the Discovery of Juno: Historical Studies in Asteroid Research

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

Early Investigations of Ceres and the Discovery of Pallas: Historical Studies in Asteroid Research, Edition 2

Human Universe

Asteroids

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

Saturn

Origins: Fourteen Billion Years of Cosmic Evolution

Investigating the Origin of the Asteroids and Early Findings on Vesta: Historical Studies in Asteroid Research

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

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

Jupiter

The Planets

Galactic Encounters: Our Majestic and Evolving Star-System, From the Big Bang to Time's End

Space Chronicles: Facing the Ultimate Frontier

In Search of Planet Vulcan: The Ghost in Newton’s Clockwork Universe