Godspeed John Glenn: 50 years since first U.S. orbit
John Glenn 50th
FILE - This 1961 file photo provided by NASA shows the original seven Mercury astronauts in their silver spacesuits. First row, from left are Walter Schirra Jr., Donald Slayton, John Glenn and Scott Carpenter. In the back row are Alan Shepard, Jr., Virgil Grissom and Gordon Cooper. (AP Photo/NASA, File)