SpaceSaturn's moon Titan could be hiding underground reservoirs of methane Titan’s lakes, seas and atmosphere are full of methane, and a simulation has revealed that it might come from an underground reservoir spanning the whole moon News
SpaceWe may have seen signs of an exomoon spewing out volcanic gas Astronomers have spotted a plume of sodium near a distant planet. The gas is so far from the surface that they say it must have come from a volcanic exomoon News