Letters: July 2001

Mission Impossible? "Can We Go to Mars Without Going Crazy?" [May] was a source of amusement to me. As a former submarine sailor in the U.S. Navy, I have spent more than two months underwater and known sailors who have gone much longer than that. Maybe NASA is looking for "the right stuff" in the wrong place. Submarine sailors routinely spend long periods of isolation at sea— with no windows.