<ul><li>According to NASA and the International Astronomical Union (IAU), the moon is not a planet.</li><li>To be classified as a planet, an object needs to meet four criteria: gravity pulling it into a round shape, clearing out debris, orbiting the sun, and not being a satellite of another object.</li><li>The IAU's 2006 definition of a planet is controversial, with some scientists considering alternative definitions that include the moon as a planet.</li><li>The size and relationship between moons and planets can be complex, as some moons are larger than their host planets. Nevertheless, the IAU's definition remains widely accepted.</li></ul>

Is the moon a planet?

Discover more