AaS! 196: Could We Ever Build a Dyson Sphere?
Ask a Spaceman!21 Mar 2023

AaS! 196: Could We Ever Build a Dyson Sphere?

What are Dyson spheres? What would be involved in building one? How much energy would it cost, and could we ever pay it back? I discuss these questions and more in today's Ask a Spaceman!

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Hosted by Paul M. Sutter, astrophysicist and the one and only Agent to the Stars (http://www.pmsutter.com).

Episoder(274)

AaS! 180: How Does Pulsar Timing Work?

AaS! 180: How Does Pulsar Timing Work?

What is a pulsar? How can we use them to map gravitational waves? What kind of technology does it take? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patre...

19 Jul 202233min

AaS! 179: What are the Alternatives to Dark Matter?

AaS! 179: What are the Alternatives to Dark Matter?

What are some of the problems with dark matter? What about modified gravity? Are there any other solutions? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.p...

5 Jul 202244min

AaS! 178: How Big Can Planets Get?

AaS! 178: How Big Can Planets Get?

How big can a rocky planet get? Can a rocky planet turn into a gas giant? Why are some planets rocky and others gassy? I discuss these questions and more in today's Ask a Spaceman! Support the show: h...

21 Jun 202238min

AaS! 177: How Do Black Holes Affect Their Galaxies?

AaS! 177: How Do Black Holes Affect Their Galaxies?

How do giant black holes shut off star formation? How do they turn it back on? Which came first, the black hole or the galaxy? I discuss these questions and more in today's Ask a Spaceman! Support the...

7 Jun 202233min

AaS! 176: Why is Gravity So Weak?

AaS! 176: Why is Gravity So Weak?

How did gravity get so ridiculously weak? Could it be related to extra dimensions? What does string theory and the concept of the "bulk" have to do with it? I discuss these questions and more in today...

17 Mai 202235min

AaS! 175: Should We Be Afraid of the Dipole Repeller?

AaS! 175: Should We Be Afraid of the Dipole Repeller?

What is the dipole repeller? Why is it a dipole? What is it repelling? What is the Bootes Void and how is it connected to dark energy? I discuss these questions and more in today's Ask a Spaceman! Sup...

3 Mai 202238min

AaS! 174: What Solves the Twin Paradox?

AaS! 174: What Solves the Twin Paradox?

What does everybody think is the twin paradox? What's the REAL twin paradox? How is the paradox resolved, and what does it teach us about synchronicity? I discuss these questions and more in today's A...

19 Apr 202228min

AaS! 173: How Does Radioactive Decay Work?

AaS! 173: How Does Radioactive Decay Work?

How was radioactive decay discovered? What are the different kinds of decay? How does quantum mechanics make all this happen? I discuss these questions and more in today's Ask a Spaceman! Support the ...

5 Apr 202230min

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