Nikku Madhusudhan: University of Cambridge Professor of Astrophysics and Exoplanetary Science on the possible signs of life on a distant exo-planet

One Cambridge scientist may have gotten us one step closer to discovering life on other planets. Professor Nikku Madhusudhan came across dimethyl sulphide gas on planet K2-18b during a routine scan - a gas mainly produced by living things. He says the planet is suspected to be an ocean world with a hydrogen-rich atmosphere, meaning the gas could come from microorganisms.  "Any discovery of life outside of any kind is a major advancement, because that tells us that the origin of life is not unique to Earth. And that is one of the central questions of science." LISTEN ABOVESee omnystudio.com/listener for privacy information.