Washington, Dec 9 : The discovery of carbon dioxide (CO2) in the atmosphere of a Jupiter-like planet 63 light-years away has fuelled hopes for the detection of habitable exoplanets in the future.
According to a report in National Geographic News, Mark Swain of NASA’s Jet Propulsion Laboratory in Pasadena, California, said that CO2 is a biomarker, a molecule associated with life as we know it.
This first discovery of the molecule on a far-flung planet, he said, is a step toward eventually finding biomarkers on smaller, more Earthlike worlds.
Last March, Swain and colleagues had announced the first detection of another biologically important chemical, methane, on the same exoplanet, as well as confirmation of water vapor.