Humans have long been captivated by life outside of our planet. While mainstream speculation about aliens is usually confined to the fictitious worlds of Hollywood films, respected scientists have also made sophisticated arguments for their existence. To sort through these claims, as well as recent news of unidentified aerial phenomena, we turned to an expert in the field. 

Our guest today, Stephen Freeland, has been exposed to a wide range of academic science—he went from studying zoology to computer science to genetics before settling into a career as an astrobiologist. He talks with Jim about what astrobiology is, the rich benefits of a multidisciplinary approach to the subject, and his take on the possibility of life, intelligent or otherwise, beyond our planet.

Read more about recent speculations and an upcoming government report here.

Find Avi Loeb and Amir Siraj’s now famous claims about an interstellar object here.

Check out the article on phosphine in Venus published in Nature.