Europa
Moon
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Europa, or Jupiter II, is the smallest of the four Galilean moons orbiting Jupiter, and the sixth-closest to the planet of all the 95 known moons of Jupiter. It is also the sixth-largest moon in the Solar System. Wikipedia
Distance to Earth: 390.4 million mi
Radius: 969.84 mi
Gravity: 1.315 m/s²
Discovered: January 7, 1610
Discovered by: Galileo Galilei; Simon Marius
Escape velocity: 2.025 km/s
Mass: 4.79984×1022 kg; (0.008 Earths)