AaS! 256: What Can Gravitational Waves Teach Us About the Big Bang?
Ask a Spaceman!23 Sep 2025

AaS! 256: What Can Gravitational Waves Teach Us About the Big Bang?

What are some sources of gravitational waves that aren't black holes? How did inflation create gravitational waves? How can we possibly detect them? I discuss these questions and more in today's Ask a Spaceman!

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Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Duncan M, Corey D, Michael P, Naila, Sam R, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Jessica M, Jules R, Jim L, David S, Scott R, Heather, Mike S, Pete H, Steve S, Lisa R, Kevin B, Michael B, Aileen G, Steven W, Deb A, Michael J, Phillip L, Mark R, Alan B, Craig B, Mark F, Richard K, Stace J, Stephen J, Joe R, David P, Justin, Robert B, Sean M, Tracy F, Ella F, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Tim Z, Linda C, The Tired Jedi, Gary K, dhr18, Lode D, Bob C, Red B, Stephen A, James R, Robert O, Lynn D, Allen E, Michael S, Reinaldo A, Sheryl, David W, Chris, Michael S, Erlend A, James D, Larry D, Karl W, Den K, Tom B, Edward K, Catherine B, John M, Craig M, Scott K, Vivek D, Barbara C, Brad, and Azra K!

Hosted by Paul M. Sutter.

Episoder(274)

AaS! 25: How Do We Know How Far Away Stuff Is...Far Away?

AaS! 25: How Do We Know How Far Away Stuff Is...Far Away?

How do we measure distances to…well, distant objects? What the heck is a Cepheid, and why is it useful? Standard candles? Standard rulers? Standard spheres? It all seems a bit much, don't you think? I...

2 Feb 201637min

AaS! 24: What's the Beef With Quantum Gravity?

AaS! 24: What's the Beef With Quantum Gravity?

Why doesn't quantum mechanics agree with general relativity? Will we ever have a quantum picture of gravity? What are some candidates? What does it have to do with cuss words? Support the show: http:/...

19 Jan 201645min

Aas! 23: What's Up With Exoplanets?

Aas! 23: What's Up With Exoplanets?

What's up with exoplanets? What's the variety, and how do we detect them? How did Hot Jupiters get so hot, anyway? Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpace...

5 Jan 201639min

AaS! Transient Special: What was the Christmas star?

AaS! Transient Special: What was the Christmas star?

It’s a special “transient” edition! What was the Christmas Star? Follow all the show updates at askaspaceman.com and support the show at patreon.com/pmsutter. Keep those questions about space, science...

22 Des 20158min

AaS! 22: Question Bonanza!

AaS! 22: Question Bonanza!

It's a BONANZA! Featuring many questions from a live event, including: Is time travel possible? Can a galaxy eat itself? Will we ever run out of stars? And so much more! Support the show: http://www.p...

15 Des 201559min

AaS! 21: Are We Really Made of Stars?

AaS! 21: Are We Really Made of Stars?

Are we really made of stars? How do we know? What does it mean for us? Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: h...

1 Des 201528min

AaS! 20: How Much Light Is in the Universe?

AaS! 20: How Much Light Is in the Universe?

How much light is in the universe? What's a "photon"? What's the brightest thing out there? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsut...

17 Nov 201529min

AaS! Special: What did you think of The Martian?

AaS! Special: What did you think of The Martian?

It’s a super-special episode, featuring a discussion with me, my “Space in your Face” co-hosts Wayne Schlingman and Anna Nierenberg, and Laura Aurenschield from the Columbus Dispatch about our thought...

12 Nov 201533min

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