'''Europa''' is the fourth largest moon of [[Jupiter]]. Discovered by [[Galileo]], it has a diameter of 3,318 km (about 2,068 miles, which would make it slightly smaller than the Earth's [[Moon]]). It is surrounded by a layer of [[ice]], which makes it part of the search for [[extraterrestrial life]]. | '''Europa''' is the fourth largest moon of [[Jupiter]]. Discovered by [[Galileo]], it has a diameter of 3,318 km (about 2,068 miles, which would make it slightly smaller than the Earth's [[Moon]]). It is surrounded by a layer of [[ice]], which makes it part of the search for [[extraterrestrial life]]. |