The largest lunar feature in the vicinity of Shioli is the Sea of Nectar, a basin 210 miles (339 kilometers) in diameter that is one of the oldest on the near side of the moon, the hemisphere that ...

Far below the gaseous atmospheric shroud on Saturn's largest moon, Titan, lies Kraken Mare, a sea of liquid methane. Astronomers have estimated that sea to be at least 1,000-feet deep near its ...