AaS! 212: Where Do All the Elements Come From?

Part 2! What was going in the very early universe? How does inflation provide the seeds of larger structures? How can we possibly test this? I discuss these questions and more in today's Ask a Spacema...

21 Aug 201833min

Part 1! What are some weaknesses with the standard Big Bang model? What are the horizon and flatness problems? How does accelerated expansion solve these? I discuss these questions and more in today's...

7 Aug 201834min

What is the cosmological constant? How is the expansion of the universe related to quantum fields? How does a vacuum energy produce accelerated expansion? I discuss these questions and more in today's...

17 Jul 201843min

What is a quantum state? How can two particles share the same state? What is entanglement, and does it really allow for faster-than-light communication? I discuss these questions and more in today's A...

3 Jul 201832min

Were the dark ages really dark? What is a perturbation, and how did they grow in the early universe? When the first stars awoke, what happened? I discuss these questions and more in today's Ask a Spac...

19 Jun 201835min

What does momentum have to do with rockets? Why are nozzles so dang important? What is a "potent mixture", anyway? I discuss these questions and more in today's Ask a Spaceman! Support the show: http:...

5 Jun 201831min

What is the so-called "OMG Particle"? Where could it possibly come from, and how are magnetic fields involved? How can we detect these cosmic rays? I discuss these questions and more in today's Ask a ...

15 Mai 201838min

Part 3! How did Einstein develop General Relativity? What does it mean for different kinds of masses to be equivalent? How does gravity do what it does? Why is curvature so important in understanding ...

1 Mai 201842min