Key facts
- Mean diameter
- 3,121.6 km
- Mass
- 4.8 × 10^22 kg (0.00804 Earths)
- Surface gravity
- 1.315 m/s² (0.134 g)
- Escape velocity
- 2.03 km/s
- Mean temperature
- -160 °C
- Rotation period
- 85.224 hours
- Orbital period
- 3.551 days
- Mean distance from Jupiter
- 0.6711 million km
Atmosphere
Negligible or extremely thin.
Composition and structure
Rock and ice.
Discovery and exploration
NASA's Europa Clipper (launched 2024) will assess its habitability.