AaS! 163: Will Our Universe End in a False Vacuum Decay?

What's the deal with Hawking Radiation? Does it really mean what we think it means? How do black holes form in the first place? I discuss these questions and more in today's Ask a Spaceman! Support th...

20 Sep 201641min

What's going on under the ice of Europa? What keeps it so warm down there? Are the oceans pure or have the right chemistry for life? I discuss these questions and more in today's Ask a Spaceman! Suppo...

6 Sep 201641min

How do we make observations beyond visible light? What exactly is a telescope? And what's up with NASA adding colors to images? I discuss these questions and more in today's Ask a Spaceman! Support th...

16 Aug 201634min

Part 2 of What is the cosmic microwave background? What causes those bumps and wiggles? What does it tell us about the early universe, and the universe we have today? What does the universe have to do...

2 Aug 201646min

What is the cosmic microwave background? How was it discovered? What did it have to do with the great debate between Big Bang theory and the Steady State model? I discuss these questions and more in t...

19 Jul 201643min

What are virtual particles? What do they have to do with waving fields around? And why can't physicists use meaningful jargon words? I discuss these questions and more in today's Ask a Spaceman! Suppo...

5 Jul 201636min

What is the so-called Great Attractor? What's the Zone of Avoidance, and is it scary? What makes galaxies move in the first place? I discuss these questions and more in today's Ask a Spaceman! Support...

21 Jun 201639min

What would happen if the moon disappeared tomorrow? What makes it so special in the first place? Does it really *do* anything useful? I discuss these questions and more in today's Ask a Spaceman! Supp...

7 Jun 201630min