Cosmologist | Author | Host | U.S. Cultural Ambassador

New York, NY
Joined April 2012
New episode of Ask a Spaceman out now! How did the scattered disk of the solar system form? What kins of strange objects roam those badlands? And what does it do to the rest of the solar system? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
1
2
273
New episode of Ask a Spaceman out now! What is frame dragging? How do we measure it? And how can we turn this into a method for extracting energy from rotating black holes? Listen now wherever you get your podcasts. Links in bio! #space #science #podcast
1
7
398
New episode of Ask a Spaceman out now! Just how hard are exoplanets observations? What kind of telescope will it take to find life? And how much information can we get out of a single pixel of light? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
1
11
658
New episode of Ask a Spaceman out now! What was the big deal about Chandrasekhar’s discovery? Why did he meet so much resistance? How is his work tied to everything from supernovae to black holes? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
5
493
New episode of Ask a Spaceman out now! What does high-speed motion through the universe do to your perspective? What is the Rindler horizon, and how does it appear? Would you get vaporized by a high-energy bath of radiation? Listen wherever you get your podcasts. Links in bio!
3
468
New episode of Ask a Spaceman out now! What really keeps the Sun shining? How long would it stay warm if fusion stopped? How long would it take before we noticed? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
4
424
New episode of Ask a Spaceman out now! What are the weaknesses of inflation theory? How did the ekpyrotic theory attempt to improve it? How did it open up its own can of worms? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
1
3
344
New episode of Ask a Spaceman out now! Why is dust so annoying? But where does it come from, and what can it do? And is dust responsible for the creation of life? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
2
3
256
New episode of Ask a Spaceman out now! Why is dust so annoying? But where does it come from, and what can it do? And is dust responsible for the creation of life? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
4
306
New episode of Ask a Spaceman out now! What does is mean for the universe to have a wave function? How does Hawking’s “no boundary” proposal mean that the universe comes from itself? And is it really the final answer? Listen wherever you get your podcasts. Links in bio!
1
3
206
New episode of Ask a Spaceman out now! What does is mean for the universe to have a wave function? How does Hawking’s “no boundary” proposal mean that the universe comes from itself? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
2
197
New episode of Ask a Spaceman out now! What does “antimatter” actually mean? Can a particle be its own opposite? What would happen to it, and what does this have to do with a missing scientist? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
3
7
652
New episode of Ask a Spaceman out now! How can matter ever go faster than light? What happens when it does? Who discovered this, and what is it good for? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
5
320
New episode of Ask a Spaceman out now! What did the universe do to make so many defects? What happens when they get trapped? And could they be hiding right in front of our noses? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
7
347
New episode of Ask a Spaceman out now! What makes the interstellar comet 3I/Atlas so weird? Why are we finding so many interstellar visitors recently? How are they made, and where do they come from? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
1
6
465
New episode of Ask a Spaceman out now! What do we find when we push the James Webb Space Telescope to its limits? Are Little Red Dots newborn galaxies or old black holes? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
6
317
New episode of Ask a Spaceman out now! How can anyone agree on the age of the universe? And how can we be so confident if it’s all just a bunch of models? What if the universe is extra lumpy? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
1
7
313
New episode of Ask a Spaceman out now! Why is math so effective at describing the universe? What is reality is made of math? What does it mean for us to be conscious beings in a mathematical structure? Listen wherever you get your podcasts. Links in bio! #space #science
1
9
378
New episode of Ask a Spaceman out now! What is the weak equivalency principle? How was antimatter discovered and why is it the perfect thing to put gravity to the test? What did the CERN experiment discover? Listen wherever you get your podcasts. Links in bio! #space #science
1
8
443
New episode of Ask a Spaceman out now! How does the double-slit experiment work? What does it teach us about reality and measurement if we try to mess with the experiment after it’s already started? Listen wherever you get your podcasts. Links in bio! #space #science #podcast
6
338