The Moon
Earth's only natural satellite
The world's least useful encyclopedia
Natural satellites that orbit the planets of our solar system, each with its own unique character.
Earth's only natural satellite
Jupiter's ice-covered moon with a hidden ocean
Saturn's giant moon with lakes of liquid methane
The largest moon in the solar system
The most volcanically active body in the solar system
Mars's larger, doomed moon
Neptune's largest moon that orbits the wrong way
Saturn's tiny moon with geysers and a hidden ocean
Jupiter's most heavily cratered moon
The smaller and more distant of Mars's two potato-shaped moons
Pluto's oversized companion in the Kuiper Belt