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?
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?
Is evolution universal throughout the cosmos? What are the different forms that life can take? When did life first appear in the universe?
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 latest book, I discuss these questions and more in today’s Ask a Spaceman!