Space Science and Technogy: Unmanned Space Exploration
2176 WordsFeb 19, 20189 Pages
Space science and technology and their applications, such as satellite communications, Earth observation systems and satellite navigation technologies, provide indispensable tools for achieving viable long-term solutions for sustainable development and can contribute more effectively to the efforts to promote the developments in the world, improve people’s lives, conserve natural resources and enhance the preparedness for and mitigation of natural disaster(and consequences). Efforts are, therefore, being made to prevent or mitigate threats to space security, since the protection of the space environment is crucial for these applications.
The following represents the most vigorously debated issues regarding long-term sustainability of outer space in relation to the UNCOPUOS.
Satellites are operated to serve for science and technology development, manned and unmanned space exploration, and security and military use. During the Cold War, around 120 satellites were launched every year. The number of launches is increasing again in the recent years, and during 2011, 80 space vehicles reached the Earth orbit or beyond, which is the highest number since the year 2000.
Currently, there are around 1,000 operational satellites orbiting the Earth. Since the first satellite, Sputnik, was launched in 1957, more than 6,000 satellites have been launched. Half of these have already been consumed, but more than 2,000 are still orbiting uselessly. The sources of debris