What’s the most distant thing we can see with the naked eye? What about with a telescope? What about at other wavelengths? Is there anything more to see? I discuss these questions and more in today’s

What is emergence in physics and why is it a big deal? What would it mean for gravity to be emergent? How would we have to rewrite the laws of physics? I discuss these questions and more in todays

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 todays Ask a Spa

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 todays Ask a

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

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 todays

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 todays Ask a Spaceman!

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

Whats 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 todays Ask a Spaceman

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 todays Ask a Spa