AaS! 278: What's A Good Story About Chandrasekhar?

What was the big deal about Chandrasekhar's discovery? Why did he meet so much resistance? How is his work tied to everything from supernovae to black holes? I discuss these questions and more in today's Ask a Spaceman!

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AaS! 280: Wait So We Can Steal Energy from Black Holes?

What is frame dragging? How do we measure it? And how can we turn this into a method for extracting energy from rotating black holes? I discuss these questions and more in today's Ask a Spaceman! Supp...

22 Syys 27min

AaS! 279: What Can We Actually Find on an Exoplanet?

Just how hard are exoplanets observations? What kind of telescope will it take to find life? And how much information can we get out of a single pixel of light? I discuss these questions and more in t...

8 Syys 29min

AaS! 277: What's It Like to Travel Near the Speed of Light?

What does high-speed motion through the universe do to your perspective? What is the Rindler horizon, and how does it appear? Would you get vaporized by a high-energy bath of radiation? I discuss thes...

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

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 Kesä 30min