Life on Moon of Jupiter?
Brad Dalton, a planetary geologist with the Ames Research Center, thinks bacteria could account for the odd light emissions, as well as the reddish hue, coming from Jupiter?s moon Europa. He used data collected from the Galileo spacecraft to find matches between chemical signatures of bacteria on Earth and unexplained infrared readings from Europa.
Analyzing infrared light can provide clues to the chemicals that the light has passed through and infrared readings of Europa indicate that the discolored patches contain water bound to some other material. Most scientists think this material is sulphur compounds, such as magnesium salts, which could have formed from geochemical reactions, or sulfuric acid created by radiation interacting with the surface.
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