Ask a Spaceman!

What is the "missing baryon problem"? How do we know how many baryons there ought to be? What does the cosmic web have to do with it? What the heck is a baryon, anyway? I discuss these questions and m...

19 Maj 202027min

What was Newton's genius? Why was his work so controversial? Why are his laws of motion so radical? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.c...

5 Maj 202042min

What makes the Earth's atmosphere so special? What makes the atmospheres of other planets so special? Why are atmospheres so special anyway? I discuss these questions and more in today's Ask a Spacema...

21 Apr 202032min

Why do we think the solar system might have another planet? Why do we think it doesn't? How do test for something that's too far away to see? I discuss these questions and more in today's Ask a Spacem...

7 Apr 202033min

Why is the speed of light so important in physics? Why does the value not matter at all? And why does it have the speed that it does? I discuss these questions and more in today's Ask a Spaceman! Supp...

17 Mars 202035min

My next book, How to Die in Space, is coming out June 2020! Here's a special sneak preview reading from the book, and info about how you can get a free autographed copy! Book info: www.pmsutter.com/bo...

10 Mars 202014min

How can a supernova become even more powerful? Why do we have such a hard time studying them, let alone defining them? What happens when you let a giant star unleash its full potential? I discuss thes...

3 Mars 202027min

How did String Theory get started? What has made the idea so popular over the decades? Can we ever truly have a theory of quantum gravity? What is supersymmetry, the landscape, and the AdS/CFT Corresp...

18 Feb 202048min