Bonus Segment: Habitable Zones Much Smaller Than We Thought

“Imagine a ‘habitable zone for complex life’ defined as a safe zone where it would be plausible to support rich ecosystems like we find on Earth today,” says Timothy Lyons, a biogeochemist at UC-Riverside who is also on the study team.

“Our results indicate that complex ecosystems like ours cannot exist in most regions of the habitable zone as traditionally defined.”

Not a lot of planets can sustain life!

For more on this story check out today's bonus segment with Len Berman and Michael Riedel...