Biosignatures & Paleobiology: April 2014

The detection of strong thermochemical disequilibrium in the atmosphere of an extrasolar planet is thought to be a potential biosignature.

Researchers from the University of Cambridge have published details about how the first organisms on Earth could have become metabolically active.

The goal of finding and characterizing nearby Earth-like planets is driving many NASA high-contrast flagship mission concepts, the latest of which is known as the Advanced Technology Large-Aperture Space Telescope (ATLAST).