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Unformatted text preview: near the poles, and the only explanation could be ice, but with mercury so close to the sun, it is essentially impossible for it to be ice. (solarsystem.nasa.gov) The atmosphere of Mercury is basically nonexistent, being a very thin layer known as the exosphere. The interior of the planet is believed to be a significant amount of iron, because although the planet is small it has a strong magnetic field. Mercury does not however, have any rings or satellites. Mercury is sort of well known by having the most extreme range of temperatures and as having that weird reflective patch. Mercury was discovered around the time of the Sumerians and was thought to be two different things as the morning and evening star. Humans, other than flybys in 1974 and 1975 have not explored it, but it is too close to the sun to do any extensive research. Reference: http://solarsystem.nasa.gov/planets/profile.cfm?Object=Mercury http://www.solarviews.com/eng/mercury.htm (image)...
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