The more we learn about exoplanets and our own solar system, the more remarkable the universe seems, and the more possibilities for life emerging elsewhere, or anywhere, increases.
The number of exoplanets in habitable orbits around reasonable suns continues to rise. NASA.gov reports that of the 150,000 stars Kepler has studied, 4175 are candidates that may have planets. One thousand were verified as of April and 2/3 or them are rocky. A stratosphere has been found on one of them, similar to that of Earth. Six are nearly Earth-size, orbiting in the habitable zone of stars not unlike our sun. Kepler 186f was the first.