exoplanet - n., a planet that orbits a star other than our Sun.
Extrasolar planet. The current total known is somewhere between 225, 228, or 277, depending on whose count you trust. Wikipedia trusts the 277 count, FWIW.
There's a couple that are close to earth-size or close to the habitable zone (where water would be liquid) but I don't think we've found one that's both. OTOH, there's gas giants in the habitable zone and they could have moons ...
Oh hello -- last week, the presence of water vapor and methane was confirmed on wiki/HD 189733 b (http://en.wikipedia.org/wiki/HD_189733_b). Missed this news.
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timeasmymeasure
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Date: 2008-03-31 04:52 pm (UTC)no subject
Date: 2008-03-31 08:27 pm (UTC)---L.
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Date: 2008-03-31 08:32 pm (UTC)---L.