Extrasolar Planet Contains Methane

Scientists at the California Institute of Technology, using the Hubble Telescope, have detected the presence of methane in HD 189733b. While methane can signal life, HD 189733b is believed to be to close to its parent star to harbor life. However, this is the first time methane has been found on a planet outside the solar system and gives scientists hope of detecting life signs on other planets from Earth. HD 189733b was discovered in October 2005 and is about 1.15 Jupiter masses.

[update] Science Daily has more.