A team of European scientists has discovered the first presence of water vapor on an extrasolar planet. The discovery, using data from NASA's Spitzer space telescope, was made by studying infrared bands as the planet HD 189733b transited in front of its parent star, located in the constellation Vulpecula. Although the planet is 1.15 times the mass of Jupiter and closer to its star than Mercury is to the sun, making it far too hostile to support life, Tinetti said the discovery ...

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