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Paul M. Sutter

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Ask a Spaceman! Episode Archive


Ask a Spaceman!

You've got questions and astrophysicist Paul Sutter has the answers - every episode you will come closer to COMPLETE KNOWLEDGE OF TIME AND SPACE!

AaS! 268: What are Little Red Dots?

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AaS! 268: What are Little Red Dots?

March 17, 2026

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?

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AaS! 267: Is the Universe Older than We Think?

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AaS! 267: Is the Universe Older than We Think?

March 3, 2026

How can anyone agree on the age of the universe? And how can we be so confident if it’s all just a bunch of models? What if the universe is extra lumpy, does that change anything?

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AaS! 266: Is the Universe Made of Math?

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AaS! 266: Is the Universe Made of Math?

February 17, 2026

Why is math so effective at describing the universe? What is reality is made of math? What does it mean for us to be conscious beings in a mathematical structure?

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AaS! 265: Does Antimatter Fall Up?

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AaS! 265: Does Antimatter Fall Up?

February 3, 2026

What is the weak equivalency principle? How was antimatter discovered and why is it the perfect thing to put gravity to the test? What did the CERN experiment discover?

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AaS! 264: Just How Weird is the Quantum Eraser?

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AaS! 264: Just How Weird is the Quantum Eraser?

January 20, 2026

How does the double-slit experiment work? What does it teach us about reality and measurement if we try to mess with the experiment after it’s already started? How does quantum complementarity guide us with how to think about it?

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