writes: "We're getting quite a collection of planets (we know about) outside our solar system, and we can add another one that has water! From the article:
Astronomers have found water vapour in the atmosphere of a giant planet outside our Solar System. The detection in the extrasolar planet HD 189733b was made using Nasa's powerful Spitzer Space Telescope and is reported in the journal Nature. — It is only the second time water has been detected on an exoplanet."