AaS! 220: Will Our Universe End in a Big Rip?
How can a "big rip" tear the universe apart? What does that mean for existence itself? Is it going to happen, and what are we doing to find out? I discuss these questions and more in today's Ask a Spa...
19 Mar 202438min
AaS! 219: What's the Best Way to Defend Our Planet?
How do we track dangerous asteroids? What can impacts do to us? What do we plan to do if The Big One is headed for us? Is Armageddon a documentary? I discuss these questions and more in today's Ask a ...
5 Mar 202440min
AaS! 218: How Do We Know What the Milky Way Looks Like?
Why is it so hard to get a picture of the Milky Way? How much of our galaxy have we mapped? What the heck is a "barred spiral" and what does that have to do with our core? I discuss these questions an...
20 Feb 202437min
AaS! 217: Will We Achieve Fusion Power Soon?
How do we achieve nuclear fusion in the laboratory? What are some experiments that are trying to achieve fusion power generation? Why is it so difficult? I discuss these questions and more in today's ...
6 Feb 202439min
AaS! 216: Do Aliens Look Like Us?
Is evolution universal throughout the cosmos? What are the different forms that life can take? When did life first appear in the universe? I discuss these questions and more in today's Ask a Spaceman!...
16 Jan 202440min
AaS! 215: How Does Science Regain Trust?
What forces people to lose trust in science? How does this affect the process of science itself? What are scientists doing to make this worse? How can we fix it? In this special episode themed from my...
2 Jan 202446min
AaS! 214: Is Empty Space Really...Empty?
What's floating around in space between all the stuff? Are there any truly empty places in the universe? What is the "fabric" of spacetime? I discuss these questions and more in today's Ask a Spaceman...
19 Des 202344min
AaS! 213: How Were Ancient Astronomers So Good?
How were ancient people able to predict eclipses so well? How did they make predictions without modern science? What were they able to discover? I discuss these questions and more in today's Ask a Spa...
5 Des 202338min
