Mercury-Redstone 4, July 21, 1961

Ground-level audio from the chaotic recovery of Gus Grissom's Liberty Bell 7 capsule — the mission where the hatch blew prematurely, nearly drowning Grissom and sending the capsule to the ocean floor. The recovery crew's discussion of a dye marker that failed to activate adds a small but telling detail to one of NASA's most scrutinized early incidents, where equipment failures cascaded in ways that were never fully explained.