The Hunt for Planet X: New Worlds and the Fate of Pluto

The Elephant in the Universe: Our Hundred-Year Search for Dark Matter

Ripples in Spacetime: Einstein, Gravitational Waves, and the Future of Astronomy, With a New Afterword

Ripples in Spacetime: Einstein, Gravitational Waves, and the Future of Astronomy

Ripples in Spacetime: Einstein, Gravitational Waves, and the Future of Astronomy

The Astronomy Handbook: The Ultimate Guide to Observing and Understanding Stars, Planets, Galaxies, and the Universe

Constellations: The Story of Space Told Through the 88 Known Star Patterns in the Night Sky

Target Earth: Meteorites, Asteroids, Comets, and Other Cosmic Intruders That Threaten Our Planet

Europe to the Stars: ESO's First 50 Years of Exploring the Southern Sky

Tweeting the Universe: Tiny Explanations of Very Big Ideas

Eyes on the Skies: 400 Years of Telescopic Discovery