The floor of Jupiter’s moon Callisto is scarred with influence craters, and its atmosphere holds carbon dioxide gas
NASA/JPL/DLR
Astronomers have spotted gaseous carbon dioxide throughout the atmosphere of Jupiter’s second-largest moon, Callisto, hinting that it may need a way more complicated carbon cycle than we thought. On Earth, the carbon cycle helps to maintain a secure local weather.
Callisto is one of the photo voltaic system’s oldest objects, having shaped some 4.5 billion years in the past round Jupiter. It can be one of probably the most battered objects, with a floor blanketed by craters.…