How long does it take for Mercury to rotate on its axis?


Quick Answer


Continue Reading

Full Answer

Mercury has a mean radius of 2,439.7 kilometers, and it is only a little larger than Earth's moon. The rocky and crater-covered planet has a thin atmosphere that is made up of helium, potassium, oxygen, sodium and hydrogen. Mercury is subjected to extreme heat from the sun during the day, and it experiences temperatures that drop to -290 degrees Fahrenheit at night.

Learn more about Planets

Related Questions