Searching for Life in the Universe

When astronomers look for signs of life outside our solar system, they usually focus on planets like Earth—rocky, lots of water, surrounded by an atmosphere, and just the right distance from its star so that it’s not too hot or too cold. But what if those criteria are too narrow? Astronomers at the University of Cambridge, including astrophysicist Nikku Madhusudhan, have found a new sort of planet that looks exceedingly promising for life. (Segment produced by Sydney Jezik)