NASA’s Cassini spacecraft has detected a monstrous new cloud of frozen compounds in the low- to mid-stratosphere of Titan, the largest moon of Saturn. Cassini’s camera had already imaged an impressive cloud hovering over Titan’s south pole at an altitude of about 300 kilometers. However, that cloud, first seen in 2012, turned out to be just the tip of the iceberg. A much more massive ice cloud system has now been found lower in the […]