While we’re still waiting for ET to give us a ring, many worlds might not have life that’s discovered the joys of radio yet. Scientists ran a two-pronged study to see how bacteria might fare on other worlds.
We currently define the Habitable Zone (HZ) of a planet by the likelihood that particular planet can host liquid water due to its peculiar blend of atmosphere and distance from its star. While this doesn’t guarantee the presence of life, its a good first place to start. Trying to expand on this, the scientists used a climate model to refine the boundaries of the HZ for atmosphere’s dominated by H2 and CO2 gases.
