Life Beyond The Shield

Astronaut F. Story Musgrave, anchored on the end of the Remote Manipulator System arm, prepares to be elevated to the top of the Hubble Space Telescope to install protective covers on the magnetometers. Astronaut Dr. Jeffrey A. Hoffman inside payload bay, assisted Musgrave with final servicing tasks on the telescope, wrapping up five days of space walks. Photo by SSPL/Getty Images

Life on Earth depends on the planet’s natural shielding, otherwise solar and cosmic radiation would ravage our small blue world. In this episode of Stuff to Blow Your Mind, sponsored by the National Geographic Channel’s series "One Strange Rock," Robert Lamb and Joe McCormick discuss the wonders of the magnetosphere and discuss the risk of radiation with one of the few humans to ever venture beyond the shield: astronaut Dr. Jeff Hoffman.

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Topics in this Podcast: space, STBYM Interview, Sun, earth