01/27/26

Managing The Risks Of Spaceflight, 40 Years After Challenger

Forty years ago this week, the space shuttle Challenger exploded in flight, 73 seconds after liftoff from Cape Canaveral. All seven crew members were killed. In the months that followed, the tragedy was traced to a failed O-ring in one of the shuttle’s rocket boosters. Now, with the Artemis II mission preparing for launch to lunar orbit, what have we learned about spaceflight and risk?

Former astronaut Jim Wetherbee joins Host Ira Flatow to remember the Challenger tragedy, and look ahead to the age of private spaceflight and the upcoming Artemis II mission.


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Segment Guests

Jim Wetherbee

Jim Wetherbee is a former NASA astronaut, the former head of flight crew operations for NASA, and the author of Controlling Risk: Thirty Techniques for Operating Excellence.

Segment Transcript

The transcript is being processed. It will be available 2-3 days after this story’s publication date.

Meet the Producers and Host

About Charles Bergquist

As Science Friday’s director and senior producer, Charles Bergquist channels the chaos of a live production studio into something sounding like a radio program. Favorite topics include planetary sciences, chemistry, materials, and shiny things with blinking lights.

About Ira Flatow

Ira Flatow is the founder and host of Science FridayHis green thumb has revived many an office plant at death’s door.

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What ‘The Challenger’ Meant For Women Astronauts

In the moments before Sally Ride entered the cockpit of 'The Challenger,' the five other women in line for the task reflect on being pioneers.

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