Ask a Spaceman!

How are white holes different from black holes? What would happen if you were stuck inside of one? Why don't they appear in the universe? I discuss these questions and more in today's Ask a Spaceman! ...

19 Sep 202334min

What is the combined motion of everything in the universe? How does all of that influence us? Are we just going around in circles, or is there something more? I discuss these questions and more in tod...

5 Sep 202336min

What are some wild stories behind names in astronomy and physics? How did we get the jargon words that we did? What are some of the funniest names? I discuss these questions and more in today's Ask a ...

15 Aug 202327min

What's the difference between science and pseudoscience? What is a scientific mindset? How are we able to spot pseudoscience when it's happening? I discuss these questions and more in today's Ask a Sp...

1 Aug 202333min

How was massive astronomy done in the 1800's? Who were the Harvard Computers? How did Annie Jump Cannon figure out how to classify stars? I discuss these questions and more in today's Ask a Spaceman! ...

18 Jul 202330min

Why didn't the big bang collapse in a singularity? What would a universe-sized black hole be like? Now that I think about it, do we live inside a giant black hole already? I discuss these questions an...

4 Jul 202323min

Could we nudge the orbit of the Earth to avoid the death of the Sun? Could it get kicked out of the solar system altogether? What are rogue exoplanets? I discuss these questions and more in today's As...

13 Jun 202329min

If light always travels at the speed of light, how does it slow down when passing through air or water? Does it matter if light is made of particles or waves? What's the difference between phase veloc...

6 Jun 202338min