Grissom reaches space; his capsule sinks under him at splashdown
Ten weeks after Alan Shepard's suborbital flight, NASA needed to know the first success wasn't luck. On July 21, 1961, Gus Grissom rode Mercury-Redstone 4 to more than 102 nautical miles up and 262 nautical miles downrange, a fifteen-minute arc that made him the second American in space. Then, bobbing in the Atlantic, the hatch cover blew off Liberty Bell 7 without warning. Water poured in and the capsule started sinking. Grissom swam clear while a helicopter crew fought to keep the flooding spacecraft from taking him down with it…
