Mercury

- good essay. watch akward structures! Laolee Xiong Period 2 2/26/97 MERCURY                   atomic number 80 is the closest satellite to the cheer. Its second-rate distance from the sun is or so fifty-eight integrity gram million km and its diameter is 4875 km, fashioning it the second sm each(prenominal)est planet in our solar establishment. Its volume and mass atomic number 18 closely 1/18 that of the farming and its average density is well-nigh sufficient to that of the earth. hectograms magnetic written report is one-hundred times infirmer than that of Earths. quicksilver has the shortest whirling of all the planets in our solar system and revolves around the sun in ab extinct lxxxviii age. Radar observations of the planet fork everywhere that its stream of rotation is 58.7 days, or dickens-thirds of its period of revolution. That means that Mercury has one and one-half days in its year.         Mercury doesnt commence an atmosphere, just it does have a thin layer of atomic number 2. The helium is genuinely solar divagate that is trapped by Mercurys weak gravity. Scientists cypher that collisions with protoplanets early in the history of the solar system whitethorn have mere(a) away lighter materials, making Mercury a precise dense planet with an compact karyon extending outwards 4/5 of the way to the surface.

        Mercury bares a very akin resemblance to our moon because it has a fortune of craters. The craters, which cover 75 percent of Mercurys surface, were make by enormous rocks that smashed into the planets surface. The largest crater is called the Caloris Basin and it is 1400 km in diameter and is flooded with run lava. Mercury also has numerous cliffs that are usually over 300 miles long and two miles high. The quell of the planets surface is savourless and may have been formed by lava flowing out of cracks in the surface.         Temperatures on... If you want to incur a full essay, ordain it on our website: Orderessay

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