Podcast Episodes

AaS! 235: Is it Time to Redefine the Planet?

Episode 235

How did Pluto get demoted? What makes a planet a planet anyway? Why do we now have so many different kinds of planets, and should we make things simpler? I discuss these questions and more in today’s…

Published on 10 months ago

AaS! 234: How Could We Turn the Sun into a Telescope?

Episode 234

How do gravitational lenses work? Where would a spacecraft need to be to use the Sun’s gravity as a telescope? What could we learn about exoplanets with this on weird trick? I discuss these questions…

Published on 10 months, 3 weeks ago

AaS! 233: Why Do We Care About Methane on Mars?

Episode 233

What’s behind the Martian Methane Mystery? Is it a sign of life, or just some strange chemical process? Or are we just fooling ourselves? I discuss these questions and more in today’s Ask a Spaceman!…

Published on 11 months, 1 week ago

AaS! 232: Is Space Tourism a Good Idea?

Episode 232

Why are private space companies pushing tourism? Is there a future for tourism in space? Is this an overall good thing for space exploration, or just a distraction? I discuss these questions and more…

Published on 11 months, 3 weeks ago

AaS! 231: What Made the Local Bubble?

Episode 231

Where do we live within the galaxy? What shapes the local bubble? How long will we be inside it? I discuss these questions and more in today’s Ask a Spaceman!

Support the show: http://www.patreon.com…

Published on 1 year ago

AaS! 230: Is the Universe Making Any New Galaxies?

Episode 230

How do galaxies form and evolve? Is the universe still making new ones? What will happen to the current galaxies in the universe? I discuss these questions and more in today’s Ask a Spaceman!

Support…

Published on 1 year ago

AaS! 229: Is the James Webb Breaking Cosmology?

Episode 229

What has the James Webb Space Telescope learned so far? Is it finding galaxies that “break” cosmology? What will we learn next? I discuss these questions and more in today’s Ask a Spaceman!

Support t…

Published on 1 year, 1 month ago

AaS! 228: Can a Galaxy Be Destroyed?

Episode 228

Can galaxies ever get destroyed? What happens to their stars? Do galaxies ever die? I discuss these questions and more in today’s Ask a Spaceman!

Support the show: http://www.patreon.com/pmsutter
Al…

Published on 1 year, 1 month ago

AaS! 227: Where is the Center of the Universe?

Episode 227

What does it mean for the universe to have a center? Could we ever travel to ours? What is a singularity? I discuss these questions and more in today’s Ask a Spaceman!

Support the show: http://www.pa…

Published on 1 year, 2 months ago

AaS! 226: Does the Universe Get Shorter When You Go Faster?

Episode 226

How does length contraction work in relativity? Do moving objects really get shorter? What about from their perspective? How are we supposed to make sense of any measurement? I discuss these question…

Published on 1 year, 2 months ago