*Mercury is the closest planet to the sun (58 million kilometers away).
*It is about the same size as the moon.
*It makes one complete orbit around the sun every 87.97 days.
*It completes one full rotation on its axis in about 58 days and 15 minutes.
*It is covered with mountains, craters, ridges, and valleys.
Link to Northern Michigan University
Nicole Barnes: nbarnes@nmu.edu