Ask a Spaceman!

Why is infrared astronomy so hard? How do we fit giant telescopes into tiny rockets? What will the James Webb uncover?  I discuss these questions and more in today’s Ask a Spaceman!

Where does the quantum world begin? Why do we have a hard time fundamentally understanding quantum systems? What connects quantum and classical physics?  I discuss these questions and more in today’s Ask a Spaceman!

What’s it like to fall into a black hole (again)? What does the outside universe look like? Is there any way to avoid your grisly fate at the singularity? I discuss these questions and more in today’s Ask a Spaceman!

What is chaos theory? How can something be both deterministic and unpredictable? Is there are hope at all for physics? I discuss these questions and more in today’s Ask a Spaceman!

How do cracks appear in spacetime? What does it have to do with symmetry? Could we ever hope to find a cosmic string? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com

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? I discuss these questions and more in today’s Ask a Spaceman!

How hard is interstellar travel? What are the possible ways to achieve the required energy? Is there anything at all feasible in the works? I discuss these questions and more in today’s Ask a Spaceman!

What’s the deal with redshift? How can we actually interpret velocities when it comes to cosmic expansion? And what’s with the recent tension over measuring the expansion rate? I discuss these questions and more in today’s Ask a Spaceman!

Is light made of waves or particles? Is matter made of waves or particles? What does it mean for matter to “wave”, anyway? Why is this so hard to understand? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com

What’s so bad about Venus, besides everything? How did it get so bad? And are we next? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter
 All episodes: http://www.AskASpaceman.com

What is the “cosmic calendar”? What are some important scales in the universe? Why is it so hard to judge “importance” of events? I discuss these questions and more in today’s Ask a Spaceman!

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? I discuss these questions and more in today’s Ask a Spaceman!

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! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Follow on Twitter: http://www.twitter.com/PaulMattSutter Like on Facebook: http://www.facebook.com/PaulMattSutter Watch on YouTube: http://www.youtube.com/PaulMSutter

How do cosmic voids form? What do they teach us about dark energy? What did the early universe look like? What does all this have to do with cupcakes? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com

What’s the difference between the universe and the multiverse? How can cosmic inflation make bubble universes? Do those universes get different physics? If I travel far enough away, will I meet…myself? I discuss these questions and more in today’s Ask a Spaceman!