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
AaS! 248: What's Going on Inside Neutron Stars?
What's inside a neutron star? What strange states of matter do we encounter? And what mysteries will we find deep in the core? I discuss these questions and more in today's Ask a Spaceman! Support the...
20 Touko 202532min
AaS! 247: How Can We Get Giant Black Holes in the Early Universe?
How do we explain the giant black holes appearing in the young universe? Is it possible to directly collapse a black hole, skipping the formation of stars? What does ultraviolet radiation have to do w...
6 Touko 202528min
AaS! 246: What is Stephen Hawking's Legacy?
How do you measure the impact of a scientist? Does Stephen Hawking compare to Newton or Einstein? What were his contributions to black holes, the big bang, and quantum gravity? I discuss these questio...
22 Huhti 202536min
AaS! 245: What Made the Moon?
Why is the moon so special? Why do we think a giant impact created it? Why didn't the same thing happen to other planets? I discuss these questions and more in today's Ask a Spaceman! Support the show...
8 Huhti 202525min
AaS! 244: What's the Most Important Wavelength in All Astronomy?
What is 21-cm radiation? What (and who) produces it? What causes it, and what does it tell us about the universe? I discuss these questions and more in today's Ask a Spaceman! Support the show: http:/...
18 Maalis 202528min
