S61-02821 (21 July 1961) --- Attempted recovery of Mercury spacecraft at end of the Mercury-Redstone 4 (MR-4) mission. View shows the Marine helicopter dropping a recovery line to the capsule. In the upper left corner of the view, the recovery ship and another helicopter can be seen. Photo credit: NASA

S61-02820 (21 July 1961) --- Attempted recovery of Mercury spacecraft at end of the Mercury-Redstone 4 (MR-4) mission. View shows the Marine helicopter pulled almost to the waters surface by the weight of the capsule, which filled with water. It eventually had to abandon its recovery attempts. Behind the Marine helicopter, a Navy helicopter prepares to assist. Photo credit: NASA

S61-02819 (21 July 1961) --- A U.S. Marine Corps helicopter retrieves astronaut Virgil I. Grissom from the Atlantic Ocean following the Mercury-Redstone 4 (MR-4) spaceflight. Grissom's "Liberty Bell" Mercury spacecraft sank to the bottom of the ocean and was not recovered. Photo credit: NASA

S61-02894 (21 July 1961) --- Astronaut Virgil I. (Gus) Grissom, pilot of the Mercury-Redstone 4 (MR-4) “Liberty Bell 7” spaceflight, arrives aboard the recovery ship, USS Randolph, following his 15-minute, 37-second suborbital space mission. He is flanked by military medical officers. Photo credit: NASA