This page is about a Multopedia article; for the character, see Mercury
Mercury is the planet closest to the Sun. A terrestrial planet made of mostly rocks and metals. The smallest planet. Mercury has virtually no atmosphere and is not protected from meteor hits, so the surface is covered with craters.
Mercury takes about 88 Earth days to complete one orbit about the Sun.
Mercury's surface temperature can reach a scorching 840 degrees Fahrenheit (450 degrees Celsius).
Mercury was named by ancient Romans after their messenger god and the god of travelers.