Astronomy Cast

Wizzard Media

Science & Medicine, Natural Sciences

Chart Positions

Natural Sciences 12
Science & Medicine 32

Astronomy Cast brings you a weekly fact-based journey through the cosmos.


Episode 209: Exotic Life

November 29th, 2010

Episode 241 of 459 episodes

We don’t like cover news on Astronomy Cast, but sometimes there’s a news story that’s interesting, complicated, and rapidly unfolding – and it happens to cover an area that we haven’t talked much about. So today we thought we’d talk about the discovery of arsenic-based life, and exotic forms of life in general. Maybe we need to redefine our definition of life. Or maybe we just got introduced to some distant cousins.