sia95-4notes - Unit 5 Space Exploration Science in Action...

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Unit 5 Space Exploration 4.0 Society and the environment are affected by space exploration and the development of space technologies. 4.1 . The Risks and Dangers of Space Exploration http://news.bbc.co.uk/1/hi/world/americas/2717535.stm The dangers of the ‘ unfriendly to humans ’ space environment were introduced in Section 2. Besides those dangers, there are others. Accidents that may result in loss of life, economic setbacks and many years of work. There are tragedies that bring to life the true dangers of space travel, such as: – 3 astronauts of Apollo 1 died during a training exercise – 7 astronauts died when the Space Shuttle Challenger exploded shortly after launch – 7 astronauts died when the Space Shuttle Columbia broke apart during re-entry Other accidents or lost missions have occurred that have cost many millions of dollars and thousands of hours of work, including most recently, the European Rover on Mars – Beagle , that did not return any data, or signal, after it landed. Sometimes decisions may have to be made that will ultimately determine if missions are to fail. Apollo 11’s lunar (Moon) landing almost didn’t occur, because the original landing site was found to be too rocky. With a precise amount of fuel, an alternate landing site had to be chosen on the first try, or the mission would be scrubbed. The Dangers of Manned Space Travel A launch can be affected by many dangers, including highly explosive fuel, poor weather, malfunctioning equipment, human error and even birds. Once in flight, the spacecraft can be affected by floating debris, meteoroids and electromagnetic radiation (coronal mass ejections – or, solar flares). Re-entering Earth’s atmosphere also has it dangers (as proven by the Colombia disaster).
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This note was uploaded on 01/30/2012 for the course SCIE 027 taught by Professor Edward during the Fall '11 term at Broward College.

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sia95-4notes - Unit 5 Space Exploration Science in Action...

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