65: 1. Apollo 1 and Soyuz 1 Disasters: Rushing the Space Race. Bob Zimmerman discusses the major setbacks suffered by both nations in 1967. In January, the Apollo 1 fire occurred during a launchpad rehearsal, killing astronauts Grissom, White, and Chaffee

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1. Apollo 1 and Soyuz 1 Disasters: Rushing the Space Race. Bob Zimmerman discusses the major setbacks suffered by both nations in 1967. In January, the Apollo 1 fire occurred during a launchpad rehearsal, killing astronauts Grissom, White, and Chaffee. The cause was carelessness: a spark ignited flammable materials in the pure oxygen atmosphere, trapping the crew because the hatch could only be opened externally. Frank Borman led the honest investigation, which resulted in major safety fixes, including a quick-opening hatch and nonflammable materials. Concurrently, in April 1967, the Soviet program suffered a disaster when cosmonaut Komarov died during the descent of Soyuz 1 after his parachute lines tangled. Both nations realized they had been rushing. The Russians, however, adopted a conservative rule: no manned mission would proceed unless an unmanned test was 100% successful, a standard the Zond missions failed to meet, giving the Americans a decisive edge for Apollo 8.

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