作者: Dennis R. Jenkins

Access—no single word better describes the primary concern of the exploration and development of space. Every participant in space activities—civil, military, scientific, or commercial—needs affordab …

Chris Petty has written a book that covers much of the unheralded research into high-speed flight that helped set the stage for human spaceflight. I recommend this book to anyone who has an interest …

Chris Petty has written a book that covers much of the unheralded research into high-speed flight that helped set the stage for human spaceflight. I recommend this book to anyone who has an interest …