Category | Ask A Spaceman

By Paul M. Sutter on August 6, 2019 in
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How do cracks appear in spacetime? What does it have to do with symmetry?

By Paul M. Sutter on July 16, 2019 in
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Why is it so hard to predict solar eclipses? How did Newton and Halley team up to solve it? What have we learned from solar eclipses since then?

By Paul M. Sutter on July 2, 2019 in
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How hard is interstellar travel? What are the possible ways to achieve the required energy?

By Paul M. Sutter on June 18, 2019 in

What’s the deal with redshift? How can we actually interpret velocities when it comes to cosmic expansion?

By Paul M. Sutter on June 4, 2019 in
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Is light made of waves or particles? Is matter made of waves or particles? What does it mean for matter to “wave”, anyway?