NASA's Spitzer Space Telescope has observed an extrasolar planet with a peculiar lack of methane.
The distant planet is about the size of Neptune and unlike most others planets observed to date it has no methane at all. The ultimate goal of the search is to find a small earth-like world with methane that could indicate the presence of life.
"NASA's Spitzer Space Telescope has discovered something odd about a distant planet -- it lacks methane, an ingredient common to many of the planets in our solar system."
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