NASA Remembers Challenger Disaster

NTD Newsroom
By NTD Newsroom
January 28, 2021USshare

Jan. 28 marks the 35th anniversary of the space shuttle Challenger disaster, which killed all seven astronauts on board after exploding soon after lift-off.

The dead astronauts include pilot Michael Smith, Judith Resnik, Dick Scobee, Ronald McNair, Ellison Onizuka, Gregory Jarvis, and Christa McAullife.

Months after the disaster, the cause was revealed: O-ring seals failed, causing leaks in the right booster rocket. An investigation found some workers had warned NASA about the danger of launching Challenger because the O-rings grew brittle in cold weather. But NASA was under pressure to keep to its ambitious flight schedule and the risk was deemed acceptable.

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