It's time for school! The Astro101 series will cover some of the most important questions in astronomy. In today's lesson, we'll have: What is a white dwarf? What is a neutron star? What is a black hole? 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 and the one and only Agent to the Stars (http://www.pmsutter.com).