Solar System Essay -- essays research papers

The Solar SystemByDelete this school text and type your name here.IntroductionAs far as we cope, in that respect are nine planets locked in orbit almost the Sun. Only one, our witness Earth, supports life. But there are unnumberable early(a) suns throughout countless galaxies scattered across the expanse of the universe. We still dont know if life exists on an opposite planet in near other galaxy. atomic number 80Named for the wing-footed messenger of the Roman divinitys, Mercury races around its orbit at a dizzying speed of 30 miles (48 kilometers) per second, making the Mercurial year completely 88 Earth days long. In contrast, one rotation around its axisor a single daytakes almost 59 Earth days.GeologyMariner 10 gave us a wealth of randomness about Mercury when it approached the planet in 1974 and 1975. Because Mercury has no piddle and barely any atmosphere, no erosion has taken place on its come forth. We see Mercury much the way it was soon after it formed. subs tanceWe learned that Mercury has an extremely weak magnetic battlefield, which could indicate a hot met on the wholeic core, such as molten iron. Geologists think Mercury may be the most iron-rich planet in the solar system. pertnessMercurys crust seems to be silicate, like that of Earth.CratersThe planets surface, viewed for the first time via Mariners cameras, is covered by craters. The buffet occurred during the early period of the solar system when clumps of material were ramming into each other to form the planets. AtmosphereMercury doesnt have what we think of as an atmospherethat is, a gaseous envelope that produces clouds and weather or protects the surface of the planet from roughly of the harmful solar radiation. The weak magnetic field on Mercury captures only the barest perceptible trace of charged particles from the Sun. genus VenusShrouded in the cloak of mystery, Venus, our nearest planetary neighbor, takes the name of the Roman goddess of love. For some unknown r eason, Venus rotates on its axis in retrogradethat is, in the reverse direction of its revolution around the Sun.GeologyGeologically, Venus appears to have some similarities to Earth. Its crust is probably granitic, overlying a basaltic mantle and a iron-nickel core. The geologic activity that we are familiar with on Earth seems not to exist on Venus, except for the presence two volcanoes along a fault line.... ...p17Uranus19.1884 years16 hours14.544.1015Neptunegod of the deep blue sea30.06165 years18 hours17.233.888Plutogod of the underworld39.44248 years6.4 days.002?0.12-0.301* AU = Astronomical Unit (Earth = 1)ConclusionWe know more and more all the time about our own solar system. During the past 15 years, shoes probes such as the Mariner and Voyager missions have given us wonderful detail about all the planets in this system. Tiny by simile to the Milky Way, our solar system is awesome, nevertheless, when considered in human scale.