Space exploration is the endeavor of humans to use technology to reach, explore, and exploit the space outside the Earth's atmosphere. It is generally based on the use of rockets to transport machines, animals, and humans to space. Objects launched into space may stay in orbit around Earth, travel in the space between the planets, or aim to leave the space dominated by the Sun completely.
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...that Doppler spectroscopy was used to discover the first extrasolar planet in 1995 and has since been used to identify more than a hundred exoplanet candidates?
...that the Satellite Instructional Television Experiment, launched in 1975, was one of the first demonstrations that showed the potential of satellite technology as an effective mass communication media?
...that STS-116 was the last STS mission scheduled for launch from Pad 39B, after which the pad will be refitted for upcoming Ares I launches?
