Mercury
Mercury is the smallest planet in our solar system and it is closest to the sun. Mercury is 43 million miles (70 million kilometers) from the sun. During the day the temperatures can reach upto 800 degrees farenheit (430 degrees celsius), during the day and can drop to -280 degrees farenheit (-170 degrees celsius). Mercury rotates 3 times everytime it orbits the sun 2 times. One Mercury year is equal to 58.646 earth days. However Mercury has no atmosphere it has a thin exosphere made up of atoms blasted of of its surface by solar winds and micrometeroids.