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Mercury Report The magnificent planet Mercury is the planet I have chosen to research I this report I have explained all there is to know about Mercury and its aura The Romans gave Mercury its name after the fleet-footed messenger of the gods because it seemed to move quicker than any other planet It is the closest planet to the Sun and second smallest planet in the solar system Its diameter is 40 smaller than Earth and 40 larger than the Moon It is even smaller than Jupiters moon Ganymede and Saturns moon Titan Mercurys history of formation is similar to that of Earths About 45 billion years ago the planets formed This was a time of intense bombardment for the planets as they scooped up matter and debris left around from the nebula that formed them Early during this formation Mercury probably differentiated into a dense metallic core and a silicate crust After the intense bombardment period lava flowed across the surface and covered the older crust By this time much of the debris had been swept up and Mercury entered a lighter bombardment period During this period the intercrater plains formed Then Mercury cooled Its core contracted which in turn broke the crust and produced the prominent lobate scarps During the third stage lava flooded the lowlands and produced the smooth plains During the fourth stage micrometeorite bombardment created a dusty surface also known as regolith A few larger meteorites impacted the surface and left bright rayed craters Other than the occasional collisions of meteorites Mercurys surface is no longer active and remains the same as it has for millions of years Plains cover the majority of Mercurys surface Much of it is old and heavily catered but some of the plains are less heavily cratered Scientists have classified these plains as intercrater plains and smooth plains Intercrater plains are less saturated with craters and the craters are less than
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