Category | Ask A Spaceman

By Paul M. Sutter on April 16, 2019 in
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What are galaxy clusters made of, besides galaxies? How can we use them to understand dark matter? And how can we make pretend ones on a computer?

By Paul M. Sutter on April 2, 2019 in
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What is “information” in physics? Why do we think it’s preserved, and what happens to information when it falls into a black hole? Why is this a problem? I discuss these questions and more in today’s Ask a Spaceman!

By Paul M. Sutter on March 19, 2019 in
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How do cosmic voids form? What do they teach us about dark energy? What did the early universe look like?

By Paul M. Sutter on March 5, 2019 in
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What’s the difference between the universe and the multiverse? Do we live in the multiverse? @PaulMattSutter at #365DaysOfAstro

By Paul M. Sutter on February 19, 2019 in
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How did Max Planck accidentally discover quantum mechanics? Why is his constant so special? #AskASpaceman with @PaulMattSutter