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Insitu Art http://insituart.com.au/ en-gb info@insituart.com.au Copyright 2018 Mercury http://insituart.com.au/blog/2012/09/mercury Mercury is the planet closest to the Sun in our Solar System. This small, rocky planet has almost no atmosphere. Mercury has a very elliptical orbit and a huge range in temperature. During the long daytime (which lasts 58.65 Earth days or almost an entire Mercurian year, which is 88 days long), the temperature is hotter than an oven; during the long night (the same length), the temperature is colder than a freezer. 
 
Mercury is so close to the Sun that you can only see it near sunrise or sunset. 
 
Craters on the surface of Mercury.Mercury is a heavily cratered planet; its surface is similar to the surface of our Moon. Cratering on Mercury triggered volcanic eruptions that filled much of the surrounding area. Mercury does have a magnetic field (probably generated by a partly-liquid iron core). 
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