Published on June 30, 2014
The Sun or Sol, is the star at the centre of our solar system and is responsible for the Earth’s climate and weather. Like all the other planets Mercury orbits round the Sun, but its orbit of the Sun lasts for only 88 days. The Earth’s orbit lasts for 365 days, and Pluto’s orbit takes 249 YEARS! Mercury goes round the Sun so quickly, the planet was called after the messenger of the Roman Gods. The messenger Mercury, or Hermes as the Greeks knew him, is usually shown as having wings on his helmet or on his sandals.