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By Paul M. Sutter on January 15, 2019 in
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Why are matter and antimatter symmetric? What happened in the early universe to make matter win? Do we have any clue as to why? What do puppies have to do with it? I discuss these questions and more in today’s Ask a Spaceman!

By Paul M. Sutter on January 1, 2019 in
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What does ‘time’ mean for light? What is the real lesson of the twin paradox? How can we all agree on the true age of the universe? Why is it all so technical?

By Paul M. Sutter on December 18, 2018 in
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How and when did we realize that atoms exist? How did we learn to understand their properties? How was Ernest Rutherford hogging all the science for himself? find the answer here at #365DaysOfAstro with @PaulMattSutter

By Paul M. Sutter on December 4, 2018 in
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Where is the Oort Cloud and what is it made of? Why do we think some comets from there? If the Oort Cloud exists, how did it form?

By Paul M. Sutter on November 20, 2018 in
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What makes time so hard to understand? Why is it so different from the spatial dimensions? Is time in any way connected to that most difficult of concepts, entropy?

By Paul M. Sutter on November 6, 2018 in
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How much energy is needed to blow up the sun? How is this connected to the idea of binding energy? Where is all the energy in the universe?

By Paul M. Sutter on October 16, 2018 in
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 What do brown dwarfs teach us about stars? What do they teach us about planets? What keeps them warm, and how long do they live?

By Paul M. Sutter on October 2, 2018 in
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What are the many sources of light in the universe? Why is a spectrum so important?