Ask a Spaceman!

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 …

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!

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What makes the Big Bang theory so successful? How were alternatives ruled out? What are the electric universe and steady state theories? Do any other options remain, like conformal cyclic cosmology? …

Why are Lagrange points so crucial to astronomy? What makes even simple gravity so difficult? How do you “put” something at a Lagrange point? I discuss these questions and more in today’s Ask a Space…

What is the fine structure constant? Where does it come from? Why is it so important? I discuss these questions and more in today’s Ask a Spaceman!

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Why do we care about loop quantum gravity? Is it a viable path to uniting quantum mechanics and general relativity? What does it mean for spacetime to be discrete? I discuss these questions and more …

How are globular clusters so old? Where did they come from, and how are they linked to galaxy formation? What makes them so globular, anyway? I discuss these questions and more in today’s Ask a Space…

What is the simulation hypothesis? Is it just pseudoscience? How do we grapple with its implications? I discuss these questions and more in today’s Ask a Spaceman!

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Where did ‘Oumuamua come from? What is it made of, and how did it end up here? Is it really an artifact of an alien civilization? I discuss these questions and more in today’s Ask a Spaceman!

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What missions will come after the James Webb Space Telescope launches? What new discoveries await us? How long will they take to start? I discuss these questions and more in today’s Ask a Spaceman!

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How do giant planets make diamond rain? Does it really, you know, rain? Where does diamond rain exist? I discuss these questions and more in today’s Ask a Spaceman!

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What is a vacuum, and what makes a false one? What happened in the early universe to bring about our current physics? Will it happen again? If so, when? I discuss these questions and more in today’s …

What are the different kinds of gamma ray bursts? What powers them? What do we still have to understand about them? I discuss these questions and more in today’s Ask a Spaceman!

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Is there more to say about the “crisis in cosmology”? What are the fundamental disagreements? Is there any way out of this mess? Why am I talking about it again? I discuss these questions and more in…

What kind of signals are we searching for from aliens? What are technosignatures and biosignatures? How are we looking for non-intelligent life? Is there any hope of finding life in our own solar sys…

Why is James Clerk Maxwell so dang awesome? How was he able to unify the forces of electricity and magnetism? Why was his work so revolutionary? I discuss these questions and more in today’s Ask a Sp…

Part 2 of 2! How did the observation of a kilonova change astronomy? How did that one observation kill off alternate models of gravity? What’s in store for the future of gravitational waves? I discus…

Part 1! What are gravitational waves? What makes them? How can we detect them here on Earth, and why is it a big deal? I discuss these questions and more in today’s Ask a Spaceman!

Audio Credit: Calt…

What are the different kinds of asteroids? What are they made of? How can we send missions to capture them, and what will we do once we get one? I discuss these questions and more in today’s Ask a Sp…

How did so much junk get up in space? How can we clean it up? How is it making light pollution worse? I discuss these questions and more in today’s Ask a Spaceman!

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