How did String Theory get started? What has made the idea so popular over the decades? Can we ever truly have a theory of quantum gravity? What is supersymmetry, the landscape, and the AdS/CFT Correspondence? What do holograms have to do with this? How many dimensions do we live in? Why does String Theory have such a hard time making predictions? How are we supposed to judge a theory that isn’t done yet?
Ask A Spaceman Archive
Nov 5th: Is String Theory Worth It? Unify This!
Oct 15th: How did Spectroscopy Revolutionize Astronomy?
How did chemists save astronomy? What’s so important about the spectrum, and how are they made? How can we tell what things in space are made out of?
Oct 1st: Is the James Webb Space Telescope worth the wait?
Why is infrared astronomy so hard? How do we fit giant telescopes into tiny rockets? What will the James Webb uncover?
Sep 17th: Why can’t I quantum tunnel myself?
Where does the quantum world begin? Why do we have a hard time fundamentally understanding quantum systems? What connects quantum and classical physics?
Sep 3rd: What’s it like to fall into a black hole? (redux)
Aug 20th: Is the universe really predictable?
Aug 6th: What are the mysterious cosmic strings?
Jul 16th: What do we learn from eclipses?
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?