The man celebrated as "the Christopher Columbus of Mars" brings us to the very brink of human exploration.

Using nuts-and-bolts engineering and a unique grasp of human history, Robert Zubrin takes us to the not-very-distant future, when our global society will branch out into the universe. From the current-day prospect of lunar bases and Mars settlements to the outer reaches of other galaxies, Zubrin delivers the most important and forward-looking work on space and the true possibilities of human exploration since Carl Sagan's Cosmos.

Sagan himself said of Zubrin's humans-to-Mars plan, "Bob Zubrin really, nearly alone, changed our thinking on this issue." With Entering Space, he takes us further, into the prospect of human expansion to the outer planets of our own solar system--and beyond.

"An exhilarating and informative ride." --The San Diego Union-Tribune

"Robert Zubrin is a true engineering genius like the heroic engineers of the past." --Frederick Turner, American Enterprise

Robert Zubrin is an internationally renowned astronautical engineer and the acclaimed author of The Case for Mars. NASA recently adapted his humans-to-Mars mission plan. A former senior engineer at Lockheed Martin, Zubrin is the founder of Pioneer Astronautics, a successful space exploration and development firm.