No concrete evidence explains why there is a moon. The best hypothesis presented is the Giant Impactor hypothesis: It suggests that around 4.45 billion years ago, while the Earth was still forming, a large object hit the... More »

A moon is a natural satellite consisting of solid material that naturally orbits a planet or dwarf planet. Although the Earth has just one moon, there are other planets that have more, and some that even have none. Moons... More »

A person can draw a simple moon using a circle or crescent shape, with or without the facial features of a cartoon moon. To draw a detailed, realistic moon, a person could use shading to indicate the darker areas and ens... More »

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There is evidence that the moon is seismically active, which means it can experience the moon version of an earthquake. During the 1969 and 1972 moon landings, astronauts placed seismometers on the moon in order to allow... More »

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The moon does not physically change its shape. As it orbits the Earth, it goes through phases, and sunlight and shadows create a slightly different look each night. It takes about one month for the moon to completely cyc... More »

The moon orbits the Earth at approximately 2,288 miles per hour and completes one full orbit every 27.322 days. Additionally, the moon takes approximately 27 days to complete one full rotation on its own axis, called its... More »

Six Apollo missions, specifically Apollo 11, 12, 14, 15, 16 and 17, landed on the moon between 1969 and 1972. Apollo 13 was also supposed to land on the moon but failed to do so due to a spacecraft malfunction. More »