The JWST’s instruments have been turned on. Now begins the months-long preparation for observations that will reveal our universe as never before. 2006 Nobel Prize for Physics laureate John Mather is the senior project scientist for the new telescope. He shares his hope for what’s to come and a look back at how this mighty instrument came to be. He and Mat Kaplan also take a deep dive into the origin of the cosmos. Bruce Betts says early risers have a treat waiting for them in the predawn sky. Discover more at https://www.planetary.org/planetary-radio/2022-john-mather-jwst

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