Lot 30 in Space & Aviation Memorabilia Spring 2004

The Discoveries of Mariner 9" (NASA SP-337, 179pp., hard) "...Then the 11-month scrutiny of Mars by Mariner-9-by all odds the most productive planetary mission that has ever been flown-provided us with a revolutionary new concept of the red planet...". Given that the United States presently has two new landers on the Martian surface, this book is even more important today as a tool to learn how our knowledge of the red planet progressed over the years.