ebook,Louis Friedman,Human Spaceflight: From Mars to the Stars,University of Arizona Press,Aeronautics & Astronautics,General Adult,Interstellar travel,Interstellar travel.,Manned space flight,Manned space flight.,Non-Fiction,Outer space - Exploration,SCIENCE / Space Science,SPACE EXPLORATION,Science,Science/Math,Science/Mathematics,Space flight to Mars,Space flight to Mars.,Space science,Technology & Engineering/Aeronautics & Astronautics,UNIVERSITY PRESS,United States,Aeronautics & Astronautics,SCIENCE / Space Science,Technology & Engineering/Aeronautics & Astronautics,Science,Space Exploration,Science/Mathematics,Space science" />