COULD sulphur traces on Jupiter’s moon Europa be a sign of alien life? The compounds look like waste products rising from bacterial colonies living beneath the surface.
The Galileo space probe first spotted the sulphur compounds, as well as revealing that the moon almost certainly has a volcanically heated and potentially habitable ocean hiding beneath the surface layer of ice. Some scientists say the sulphur may have come from the nearby moon Io, where the compound is abundant. Or volcanic eruptions in the moon’s core may have brought the sulphur to the surface.
But Aranya Bhattacherjee of the University of…
