Water Found in Extrasolar Planet’s Atmosphere

Space.com : Astronomers have detected water in the atmosphere of a planet outside our solar system for the first time.The finding, to be detailed in an upcoming issue of Astrophysical Journal, confirms previous theories that say water vapor should be present in the atmospheres of nearly all the known extrasolar planets. Even hot Jupiters, gaseous planets that orbit closer to their stars than Mercury to our Sun, are thought to have water.