Mercury is the closest planet to the Sun. The distance of Mercury from the sun is 0.387 astronomical units. Being the nearest planet to the sun, Mercury receives a lots of sun heat therefore its temperature is high. There are four terrestrial planets in the solar system and Mercury is one of them. Another attribute of Mercury is that it is the smallest planet in the solar system.

August 5, 2010 | Mohsin Ali | No Comments | 369 views