The Jupiter-like extrasolar planet known as HD 189733b, orbiting close to its star about 63 light years from Earth, in an undated illustration. Astronomers used the Hubble Space Telescope to detect methane in this planet's atmosphere -- the first organic molecule found on a planet outside our solar system. Hubble also confirmed the presence of water vapor in the planet's atmosphere. The findings are published in the journal Nature. [Agencies]