AaS! 114: How did spectroscopy revolutionize astronomy?

Ask a Spaceman!

How did chemists save astronomy? What’s so important about the spectrum, and how are they made? How can we tell what things in space are made out of? I discuss these questions and more in today’s Ask a Spaceman!

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Music by Jason Grady and Nick Bain. Thanks to Cathy Rinella for editing.

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