What are the many sources of light in the universe? Why is a spectrum so important? What’s the difference between synchrotron and Cherenkov radiation? What’s the best word ever in physics? I discuss these questions and more in today’s Ask a Spaceman!

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Big thanks to my top Patreon supporters this month: Robert R, Dan M, Matthew K, Evan T, Justin G, Kevin O, Chris C, Helge B, Barbara K, Matt W, jmautobot, George, Tim R, Neil L, Nikolas W, Yordon M, Sean M, Cesare R, Fenris N, Johan S, Joe R, Neil P, Gabriella G, Tom S, Larry B, bryan D, irene P, Matt C, lothian53, Steve P, Debra S, Ken L, Alberto M, Logan D, Chris L, Mark R, Alan B, Stu S, Stephen J, John F, Maureen R, Frank T, Sean P, Craig B, Jesse A, Ron S, Steven L, Mark R, Jackie R, Kevin N, Darron R, Hector P, Dave L, Stace J, S Stark, Owen B, Rickard K, Andrew L, Vladimir Z, Stephen M, Grace M, Robert K, Jeremy K, Russell W, Thomas S, David B, Tamara F, John, Kirk B, and Alexander K!

Music by Jason Grady and Nick Bain. Thanks to WCBE Radio for hosting the recording session, Greg Mobius for producing, and Cathy Rinella for editing.

Hosted by Paul M. Sutter, astrophysicist at The Ohio State University, Chief Scientist at COSI Science Center, and the one and only Agent to the Stars (http://www.pmsutter.com).

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