Â Â Â Saturn’s huge moon Titan just got a little more mysterious.
NASA’s Cassini spacecraft has spotted an odd islandlike feature in Ligeia Mare, one of Titan’s largest hydrocarbon seas. Scientists don’t know what to make of the feature, which has apparently doubled in size over the past year or so, from about 30 square miles to 60 square miles (78 to 155 square kilometers).
“Science loves a mystery, and with this enigmatic feature, we have a thrilling example of ongoing change on Titan,” Cassini radar team deputy leader Stephen Wall, of NASA’s Jet Propulsion Laboratory in Pasadena, California, said in a statement. “We’re hopeful that we’ll be able to continue watching the changes unfold and gain insights about what’s going on in that alien sea.” . . .