They discuss the possibility of life on Mars and the concept of panspermia. They explore the idea that life on Earth may have been seeded through the exchange of material with Mars.
Brian Keating is a cosmologist, professor of physics at UC San Diego, host of the podcast "Into the Impossible with Brian Keating," and author of several books, including "Losing the Nobel Prize" and "Into the Impossible: Think Like a Nobel Prize Winner." https://briankeating.com/