Exoplanets: Diamond Worlds, Super Earths, Pulsar Planets, and the New Search for Life beyond Our Solar System
Michael Summers
2017
Exoplanets: Hidden Worlds and the Quest for Extraterrestrial Life
Donald Goldsmith
2018
Expanse Box Set Books 1-3
James S. A. Corey
2015
Expanse series #1-6
James S. A. Corey
Explorations: Colony
Tim C. Taylor
2017
Explorer
C. J. Cherryh
2002
Exploring the Unknown: Selected Documents in the History of the U.S. Civil Space Program, Volume 7: Human Spaceflight, Projects Mercury, Gemini, and Apollo