AaS! 259: Where Exactly is the Edge of the Universe?
Is the universe infinite? What about the cosmological horizons, the limits to what we can see? Will we ever know for sure what's beyond them? I discuss these questions and more in today's Ask a Spacem...
4 Nov 202523min
AaS! 258: What's Going to Happen After the ISS?
Why did we develop the International Space Station in the first place? What have we learned in its 25+ years of operation? When is it coming down, and why? And what's coming up next? I discuss these q...
21 Okt 202532min
AaS! 257: How Does One Go About Smashing Particles?
How do particle colliders work? What kinds of energies are we talking about? Are there any uses for colliders except for physics experiments? I discuss these questions and more in today's Ask a Spacem...
7 Okt 202527min
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...
23 Sep 202534min
AaS! 255: How Do the Biggest Stars Get So Big?
How do we measure the sizes of stars? What are the biggest ones today, and how big could stars have gotten in the past? Is there any way for a star to cheat and get even bigger? I discuss these questi...
9 Sep 202531min
AaS! 254: How Do Variable Stars, You Know, Vary?
What powers Cepheid variable stars? What about Mira variables and pulsating stars? And are there variable stars that don't actually vary at all? I discuss these questions and more in today's Ask a Spa...
19 Aug 202525min
AaS! 253: What Does Outer Space Sound Like?
What would the Sun sound like if we could hear it? Does any noise at all happen in the universe? What's the biggest sound of all? I discuss these questions and more in today's Ask a Spaceman! Support ...
5 Aug 202531min
AaS! 252: Why Can't We Get Free Energy from the Vacuum?
Why does the vacuum of spacetime have energy? How much energy does it have? What prevents us from using it to do anything useful? I discuss these questions and more in today's Ask a Spaceman! Support ...
22 Jul 202534min
