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 Syys 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 Syys 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 Elo 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 Elo 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 Heinä 202534min
AaS! 251: Are the Cosmic Voids Really Empty?
How do we actually define voids? Are there regions within them that are truly empty? What would it be like to be inside one? I discuss these questions and more in today's Ask a Spaceman! Support the s...
8 Heinä 202530min
AaS! 250: Where Do the Constants of Nature Come From? Part 2
Part 2 of 2! What are the modern constants of nature? Is the universe fine-tuned for life? Does the multiverse or string theory explain the origins of the constants? I discuss these questions and more...
17 Kesä 202533min
AaS! 249: Where Do the Constants of Nature Come From? Part 1
Part 1 of 2! How do fundamental constants appear in physics? Why are they so important? Why do we care where they come from? I discuss these questions and more in today's Ask a Spaceman! Support the s...
3 Kesä 202536min
