In the context of spaceflight, a satellite is any object which has been placed into orbit by human endeavor. They are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon. The United States Space Surveillance Network (SSN) has been tracking space objects since 1957 when the Soviets opened the space age with the launch of Sputnik I. Since then, the SSN has tracked more than 26,000 space objects orbiting Earth. The SSN currently tracks more than 8,000 ...
I see what you're thinking but this isn't the Galileo from Pisa but Europe's proposed global navigation satellite network. Perhaps the European Union (EU) is hoping it'll live up to the Italian's great legacy. Well, the EU argues that satellites have ... ...
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