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!

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Avsnitt(281)

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 Juni 26min

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 quest...

9 Juni 30min

AaS! 272: Are Neutrinos Their Own Evil Twins?

What does "antimatter" actually mean? Can a particle be its own opposite? What would happen to it, and what does this have to do with a missing scientist? I discuss these questions and more in today's...

19 Maj 34min

AaS! 271: What Happens When Light Goes Boom?

How can matter ever go faster than light? What happens when it does? Who discovered this, and what is it good for? I discuss these questions and more in today's Ask a Spaceman! Support the show: http:...

5 Maj 21min

AaS! 270: Is the Universe…Defective?

What did the universe do to make so many defects? What happens when they get trapped? And could they be hiding right in front of our noses? I discuss these questions and more in today's Ask a Spaceman...

21 Apr 28min

AaS! 269: Why Are Interstellar Objects So Weird?

What makes the interstellar comet 3I/Atlas so weird? Why are we finding so many interstellar visitors recently? How are they made, and where do they come from? I discuss these questions and more in to...

7 Apr 27min

AaS! 268: What are Little Red Dots?

What do we find when we push the James Webb Space Telescope to its limits? Are Little Red Dots newborn galaxies or old black holes? What are they teaching us about the early universe? I discuss these ...

17 Mars 32min