Extrasolar Planets: July 2015

We report on the discovery and validation of Kepler-452b, a transiting planet identified by a search through the 4 years of data collected by NASA's Kepler Mission.

The discovery of a super-Earth-sized planet orbiting a sun-like star brings us closer than ever to finding a twin of our own watery world.

NASA's Kepler mission has confirmed the first near-Earth-size planet in the "habitable zone" around a sun-like star.

A fundamental astrobiological question is whether life arose spontaneously on earth or was transported here from an extrasolar system.

Detailed characterization of an extrasolar planet's atmosphere provides the best hope for distinguishing the makeup of its outer layers, and the only hope for understanding the interplay between initial composition, chemistry, dynamics & circulation, and disequilibrium processes.

We present a comprehensive study of the abundance of carbon dioxide in exoplanetary atmospheres.