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

Building and Sending Interstellar Probes

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

Types of Rocket Propulsion and Potential Space Drives

Rocket Men: The Daring Odyssey of Apollo 8 and the Astronauts Who Made Man's First Journey to the Moon

All about Mars Journeys and Settlement

New Scientist: The Origin of (almost) Everything: from the Big Bang to Belly-button Fluff

Exploring and Settling Our Huge Solar System

Endurance: A Year in Space, A Lifetime of Discovery

The TR-3B Black Manta: What is it Really?

Just Six Numbers

Aliens Are Already Among Us

The Astronomy Book: Big Ideas Simply Explained

Infinity and our Unbounded Universe: The Big Bang Never Happened

Isaac Asimov's Guide to Earth and Space

Humanity and the Universe

Black Holes and Baby Universes and Other Essays

Types of Spaceships: Past, Present, and Future

The Man Who Fell to Earth: From the author of The Queen's Gambit – now a major Netflix drama