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It's been 40 years since NASA's Challenger disaster. The space shuttle exploded 73 seconds after take-off, killing all seven astronauts on board including teacher Christa McAuliffe. The tragedy unfolded live on television. Investigators later blamed an O-ring that failed in the freezing launch conditions at Cape Canaveral, Florida. #challenger #spaceshuttle #spacetravel #nasa #capecanaveral | 7NEWS Sydney

Forty years ago, the Space Shuttle Challenger launched from Kennedy Space Center after nearly a year of repeated delays. Just 73 seconds after takeoff, the shuttle broke apart, killing all seven crew members aboard. The cause of the disaster was the failure of the primary and secondary O-ring seals in one of the rocket boosters, as record-low temperatures on the morning of the launch had stiffened the rubber O-rings, reducing their ability to seal the joints. The boosters were built by Utah-base

On January 28, 1986, the space shuttle Challenger exploded shortly after liftoff, killing the seven crewmembers on board. Space History Archives👉 https://space-com.visitlink.me/_89OFG The space shuttle disintegrated over the Atlantic Ocean, just off the coast of Cape Canaveral in Florida. NASA later determined that two rubber O-rings, which were designed to separate the sections of the rocket booster, had failed due to cold temperatures on the morning of the launch. The disaster resulted in a 3