EPOXI to Comet Hartley 2

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EPOXI combines two-science investigation in a new mission that re-uses the Deep Impact spacecraft already in orbit around the Sun (“National” 1). EPOCH stands for extra solar planet observation and characterization and DIXI stands for the deep impact extended investigation of comets. Through combining EPOCH and DIXI that is how NASA got EPOXI. EPOXI embraces NASA’s mission to explore the origin and history of our solar system by understanding the composition and diversity of cometary nuclei and the properties of other planetary systems (“National” 1). EPOXI the flyby spacecraft was not very big but still weighed a lot. It had the dimensions of 10.8 ft. long, 5.6 ft. wide and 7.5 ft. high (“EPOXI” 1). Still, being so small it weighs nearly 601 kilograms, which is nearly 1,325 pounds at launch. Also adding additional weight of 1,140 pounds in spacecraft and 8.8 pounds of fuel remaining (“EPOXI” 1). So, how was EPOXI powered? Well, EPOXI had a 9 by 9 foot solar panel providing up to 750 watts, but it also depends on the distance from the sun. The power for EPOXI comes from 16-amp-hourrechargeable nickel hydrogen battery (“EPOXI” 1). The EPOXI mission to Comet Hartley launched January 12, 2005 from Cape Canaveral Air Force Station in Florida. The launch vehicle was Delta 11 7925 with Star 48 upper stage (“EPOXI” 1). The flyby of EPOXI went by Comet Hartley 2 at around 10 a.m. EDT or 7a.m. PDT Nov. 4, 2010 and the additional distance traveled by spacecraft to Hartley 2 was about 4.6 billion kilometers (“EPOXI” 1). Not only was the mission far and making several stops but also very expensive. The cost of the deep impact (not including the launch vehicle) was $42 million; including $252 million spacecraft development and $15 mill... ... middle of paper ... ...ng a new comet. EPOXI has helped NASA researchers learn so much from this mission. As NASA stated “EPOXI embraces NASA’s mission to explore the origin and history of our solar system by understanding the composition and diversity of cometary nuclei and the and the properties of other planetary systems (“National” 1). Works Cited "At the Heart If Hartley-2, a New Breed of Comet?" NASA. NASA, 17 May 2011. Web. 20 Nov. 2013. . Dunbar, Brian. "Science Paper Details NASA EPOXI Flyby of Hyper Comet." NASA. NASA, n.d. Web. 20 Nov. 2013. "EPOXI Comet Encounter Fact Sheet." NASA. NASA, n.d. Web. 20 Nov. 2013. . "National Aeronautics and Space Administration." EPOXI. NASA, n.d. Web. 20 Nov. 2013. .

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