Aurora- Light of Mystery Essay -- Papers

Aurora- informal of Mystery Text Box This shuttle image shows the characteristic oviform shape of the daybreak.i What is morning? Auroras, or polar lights, are the luminous phenomenon of the amphetamine atmosphere occurs in high latitudes of both hemispheres. Auroras in the northern hemisphere are called aurora borealis and those in the south hemisphere are called aurora australis. Aurora (Latin for dawn) is beautiful and amazing lights which are visible in the apart(p) sky in the poles. It can appear as many polar forms, but usually it is a greenish quivering glow ascend the horizon. In 1621 the term aurora was coined by the French astronomer. More and more observations were through with(p) and a concrete description was archived soon afterwards. Many theories were developed this phenomenon. roughly suggested that it was the reflection of sunlight of artic light and some believed it was the firelight at the edge of the orbit however both hy potheses are rejected because it was prime that aurora was found 100-400km above the earth surface which is well beyond the atmosphere. Around the seventeenth century it has been discovered that it is caused by the interaction between energetic plasm particles from outside atmosphere with atoms of higher atmosphere. Till now, not all the questions some aurora have been answered, but with the escalating astronautic technology, we have a practically better understanding on this puzzling phenomenon. How does aurora form? At every moment the sun is giving out charged particles in solar wind. Some of these particles are captured by the earth magnetic welkin and the bombardment of the solar wind with the atmospheric particles... ...aurora_e/index.html The Exploration of the Earths Magnetosphere. http//www-istp.gsfc.nasa.gov/Education/wmap.html education about Aurora. http//sprg.ssl.berkeley.edu/cyclopi/lesson1.html Applied physics laboratory site. h ttp//www.jhuapl.edu/newscenter/pressreleases/1998/auroras.htm NASA website. http//www-istp.gsfc.nasa.gov/ Web Exhibits site. http//webexhibits.org/ Britannica Online. http//www.britannica.com/ Hyperphysics. http//hyperphysics.phy-astr.gsu.edu/hbase/hph.html Evaluation on resource My source information comes from books, journals and internet. The information about most topics is kinda consistent except the formation of voltage drop in the aurora acceleration region. There are many theories explaining the phenomenon, but I only when concentrated on the two main ones.