What planet is Mercury?

Answer by  Allstar (2071)

Mercury is the closest planet to our Sun. It's the smallest planet in our Solar System. It's surface resembles our moon, mostly gray pockmarked with impact craters and rills. Mercury completes 1 orbit in 88 days, and a solar "day" on Mercury takes around 176 days. It has no moons, no rings, no real atmosphere.

Answer by  Doomstoned (1454)

At an average distance of 36 millions miles, Mercury is the closest planet to sun. Mercury has no moons and is the 2nd densest major body in the solar system.