project mercury By milesnelson1234 Period: May 5, 1961 to May 5, 1961 project mercury 3 freedom 7 on may,5 1961 the spacecraft freedom7 the flight was successful NASSA wrote in their summary. it lasted 15min and 28sec. the astronuts/crew were Alan.b and shepard,jr Nov 28, 2016 9 missions on mercury