AaS! 273: What if the Universe Had No Beginning?

What does is mean for the universe to have a wave function? How does Hawking's "no boundary" proposal mean that the universe comes from itself? And is it really the final answer? I discuss these questions and more in today's Ask a Spaceman!

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Hosted by Paul M. Sutter.

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4 Elo 23min

AaS! 276: What Would Happen if the Sun…Stopped?

What really keeps the Sun shining? How long would it stay warm if fusion stopped? How long would it take before we noticed? I discuss these questions and more in today's Ask a Spaceman! Support the sh...

21 Heinä 26min

AaS! 275: Why Can't the Universe Be Cyclic?

What are the weaknesses of inflation theory? How did the ekpyrotic theory attempt to improve it? How did it open up its own can of worms? I discuss these questions and more in today's Ask a Spaceman! ...

7 Heinä 31min

AaS! 274: Is Dust the Best Thing in the Universe?

Why is dust so annoying? But where does it come from, and what can it do? And is dust responsible for the creation of life? I discuss these questions and more in today's Ask a Spaceman! Support the sh...

23 Kesä 26min