Astronomy Essay -- essays research papers fc

One thing us as humans obligate never been able to fully understand is astronomy. Always having an unexplained mystery, astronomy also has served as a way to keep time and predict the future. The intelligence astronomy is defined as the study of heavenly bodies, meaning anything in the sky such as stars, galaxies, comets, planets, nebulae, and so on. Many people, if not everyone, is amazed by the night sky on a clear, moonless night.Astronomy dates back to ancient times when peoples such as the Babylonians, Egyptians, and Chinese kept written records of galactic notwithstandingts and occurrences. Todays seven day week originates from the Babylonians seven important bodies in the night sky the Sun, Moon, Mars, Mercury, Jupiter, Venus, and Saturn. The ancient Egyptians used the stars to align their pyramids and many of their corridors in almost perfect north-south or east-west directions. The Chinese were experts at predicting solar eclipses. They believed that a solar eclipse was a dangerous warning. Chinese astronomers were executed if they failed to predict an eclipse. everyplace the years there have been many more important figures in astronomy. One extraordinary astronomer was Galileo Galilei who invented the first refractor cathode-ray oscilloscope in which light is change shape to enlarge an image of the sky (Galileo Project). The next long astronomer to follow him was Isaac Newton. Newton had made a great amount of contri furtherions to astronomy during his life. He further proved that the Earth was not the center of the universe and he also invented the Newtonian reflector telescope which is still used today in observatories. Also, he discovered that light could be split into a visible spectrum of colors. Spectral colors from stars would later be used to determine their size, temperature, chemical composition, and even the direction the star is moving.Today, professional astronomers play a very different role than hundreds of years ago. Surprisin gly, astronomers today spend minimal time at the telescope gazing at the night sky. Operating planetariums, teaching astronomy classes, or operating and maintaining an observatory are some of the things astronomers today do.Along with professional astronomers are unpaid astronomers who only observe the heavens for personal satisfaction and enjoyment. I myself am an amateur astronomer an... ...enith (straight overhead position). Two galaxies which are believed to revolve around our possess are the Small and Large Magellanic Clouds. Only visible from the Southern Hemisphere, Magellan, the famous European explorer, was the first to describe these galaxies.Even though we know a great amount more than the astronomers in the past, there is still an even larger amount we do not know about the universe to this day. Even our protest solar body contains many questions yet to be answered. Some of these include the possibility of a planet beyond Pluto (Planet X), the means by which the sys tem was created, and even the possibility of a sister star to the Sun named Nemesis. Another astronomical mystery is the creation of the universe. In time, many questions will be answered but some will always remain. Astronomy is something that will never be completely understood.Works CitedGoldsmith, Donald. The Astronomers. New York St. Martins Press,1991.Fradin, Dennis P. Astronomy. Chicago Childrens Press, 1987.The Galileo Project. in History of Astronomy. collection of sites(rev. Dec. 2002 accessed 6 Jan, 2002) available from http//www.cv.nrao.edu/fits/www/yp_history.html