Why This Exoplanet’s Hellish Atmosphere Is a Big Deal in the Search For Alien Life

The same gases and compounds that make it so inhospitable could also be signs of living organisms at work.

from gizmodo http://www.gizmodo.co.uk/2017/09/why-this-exoplanets-hellish-atmosphere-is-a-big-deal-in-the-search-for-alien-life/