AaS! 4: Are There Aliens...Out There?

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

What are the biggest mysteries facing modern astronomers? What questions do I wish could be answered in my lifetime? What are most astronomers working on right now? I discuss these questions and more ...

16 Mai 202333min

What discoveries and insights made the biggest impacts in astronomy and physics? What were the biggest surprises? What results took the longest to achieve? I discuss these questions and more in today'...

2 Mai 202341min

How does a black hole make a shadow? What can we learn from it? What are we seeing when we look at a black hole? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://...

18 Apr 202329min

What are the advantages of robotic exploration of the solar system? What are the limitations? Is there any situation where human exploration is better? I discuss these questions and more in today's As...

4 Apr 202334min