moon
The Moon is Earth s only natural satellite. It orbits at an average distance of 384400 km (238900 mi), about 30 times the planet s diameter. Being tidally locked, it always faces Earth with its near side. This results in the lunar month of 29.5 days matching the lunar day. Exerting gravitational force on Earth, it and to a lesser extent the Sun are the main drivers of the tides
- moon
- mars
- titan
- europa