Ask a Spaceman!

By Paul M. Sutter

What's Ask a Spaceman! about?

What would happen if you fell into a black hole? How big is the universe? Just what the heck is a quasar, anyway?

You've got questions, and astrophysicist Paul Sutter has the answers! Submit questions via Twitter using #AskASpaceman or post to Every week you will come closer to COMPLETE KNOWLEDGE OF TIME AND SPACE!

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AaS! 208: Where Are All the...


How are white holes different from black holes? What would happen if you were stuck inside of one? Why don’t they appear in the universe? I discuss these questions and more in today’s Ask a Spaceman! This episode is sponsored ...

Ask a Spaceman! episodes: