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Planet Mercury

Mercury is the fastest planet in our solar system.
It zips around our Sun at a speed of about 172,000 kilometers per hour (107,000 miles per hour).

Average temperature of mercury at day time is 840 degrees F( 450 degrees C), contrary to this at nights mercury is very cold, average temperature at night time is about -275 degrees F( -170 degrees C).

In Mercury's poles there are places where sunlight never reaches, this means that it is very cold there at all times.

The planet is named for Mercury, the Roman messenger of the gods.

Mercury may be seen as an evening "star" near where the sun has set, or as a morning "star" near where the sun will rise.