Our Solar System
Mercury Surface
Mercury’s surface is overall very similar in appearance to that of the Moon, showing extensive mare-like plains and heavy cratering, indicating that it has been geologically inactive for billions of years
Mercury was heavily bombarded by comets and asteroids during and shortly following its formation 4.6 billion years ago, as well as during a possibly separate subsequent episode called the late heavy bombardment that came to an end 3.8 billion years ago.
This slow rate, combined with mercury's nearness to the sun, causes a daytime temperature of more than 400 °C. In the nightime, heat radiates away quickly and the temperature may be as low as -200 °C". "The temperature on mercury gets very hot, at times it reaches 660 degrees farenheit. That is enough to melt some metals."
Mercury was heavily bombarded by comets and asteroids during and shortly following its formation 4.6 billion years ago, as well as during a possibly separate subsequent episode called the late heavy bombardment that came to an end 3.8 billion years ago.
This slow rate, combined with mercury's nearness to the sun, causes a daytime temperature of more than 400 °C. In the nightime, heat radiates away quickly and the temperature may be as low as -200 °C". "The temperature on mercury gets very hot, at times it reaches 660 degrees farenheit. That is enough to melt some metals."
