Mercury

Mercury

The innermost planet in the Solar System is a dense, heavily cratered world that takes about 59 Earth days to fully rotate on its own axis as it travels on its 88-day journey around the Sun.

It is possible to see Mercury from the Earth without a telescope or binoculars though its closeness to the Sun's bright light can make it difficult to spot.

Photographed and studied at close range by the Mariner 10 and Messenger probes, Mercury is blasted by solar radiation and is not thought to be a likely place for life to flourish.

Find out more about the other planets in the Solar System

Photo: Mercury taken by the Messenger probe (NASA/JHU Applied Physics Laboratory/Carnegie Institution)

Watch and listen to clips from past programmes TV clips [6] Radio Programmes [1]

Mercury

About Mercury

The closest planet to the Sun is hard to spot.

About Mercury

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