Mercury is the smallest and innermost planet in the Solar System. Its orbital period around the Sun of 87.97 days is the shortest of all the planets in the Solar System. It is named after the Roman deity Mercury, the messenger of the gods.

View on Maps: google.com/maps/space/mercury

Distance from Sun: 35.98 million mi

Radius: 1,516 mi

Orbital period: 88 days

Length of day: 58d 15h 30m

Did you know: Only half of Mercury has ever been seen!