It was supposed to be a routine launch pad test. But from the Apollo 1 command module came a panicked voice saying: "Fire in the cockpit."
Exactly 40 years later, the three Apollo astronauts who were killed in that flash fire were remembered on Saturday for paving the way for later astronauts to be able to travel to the moon.
SAFETY CHANGES
The deaths of Virgil "Gus" Grissom, Ed White and Roger Chaffee forced NASA to pause in its space race with the Soviet Union and make design and safety changes that were critical to the agency's later successes.
"I can assure you if we had not had that fire and rebuilt the command module ... we could not have done the Apollo program successfully," said retired astronaut John Young, who flew in Gemini 3 with Grissom in 1965.
"So we owe a lot to Gus, and Rog and Ed. They made it possible for the rest of us to do the almost impossible," he said.
SOLEMN WEEK
The memorial service at the Kennedy Space Center Visitors Complex marked the start of a solemn week for NASA -- yesterday was the 21st anniversary of the space shuttle Challenger accident, and Thursday makes four years since the space shuttle Columbia disaster.
Chaffee's widow, Martha, and White's son, Edward III, along with NASA associate administrator Bill Gerstenmaier, laid a wreath at the base of the Space Mirror Memorial, a tall granite-finished wall engraved with the names of the Apollo 1, Challenger and Columbia astronauts and seven other astronauts killed in accidents.
DANGER AT HOME
NASA had not considered the Apollo countdown drill hazardous because it anticipated accidents only while in space.
Fire rescue and medical teams were not at the launch pad. No procedures had been developed for the type of emergency the Apollo 1 crew faced.
The 100 percent oxygen environment made it highly combustible, and internal pressure made it impossible for the astronauts to open the command module's inner hatch.
The astronauts died from inhaling toxic gases.
After the tragedy, the hatch to the command module was rede-signed so that it opened outward instead of inward, flammable materials in the cabin were replaced, wiring problems were fixed and a mixture of nitrogen and oxygen replaced the all oxygen atmosphere.
Apollo 1's legacy contributed to the safety culture at NASA and the successful lunar landings, said Edward White III, whose father conducted the first US spacewalk in 1965.
"The safety that came out of Apollo 1 is still here today," he said.
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