5.1. ASTROBIO - What makes a Planet Habitable? - Professor Charles Cockell, School of Physics and Astronomy, University of Edinburgh

Please note that some scientists recently detect a biosignature for life in the atmosphere of Venus, not on its surface.This is perhaps one of the exceptions Dr.Cockell cautions us about, giving the example of Jupiter's moon Europa.We should not be closed-minded in our search for extraterrestrial life.The necessary conditions for at least primitive life could possibly be in an atmosphere as well.
- Andrew Taylor