Mars tribute marks memories of Shepard's flight
Thursday, May 5, 2011 - 09:30
in Astronomy & Space
(PhysOrg.com) -- The team exploring Mars via NASA's Opportunity rover for the past seven years has informally named a Martian crater for the Mercury spacecraft that astronaut Alan Shepard christened Freedom 7. On May 5, 1961, Shepard piloted Freedom 7 in America's first human spaceflight.