- For natural satellites, see moon .
Satellites were constructed objects sent into planetary orbit for various reasons.
Later in the 1950s, the Soviet Union "space dog" Laika was sent into Earth orbit. According to one account, Laika died in space. The Third Doctor and Sarah Jane Smith buried her on Quiescia. (PROSE: Alien Bodies) According to another account, Laika was rescued by an alien entity and given human level intelligence and human voice (taken from cosmonaut Marinka Talanov). The Sixth Doctor and Peri Brown encountered her on 10 November 1963. (AUDIO: 1963: The Space Race)
In 1959, CIA agents Jerome Weismuller and Hawk were assigned to find a US satellite that had gone haywire. It had been hit by a Nostalgia Tours bus. The Seventh Doctor recovered the satellite and gave it to the agents. (TV: Delta and the Bannermen)
Up until the year 5,000,000,000, the National Trust used gravity satellites to hold back Sol's expansion, but these were turned off when the Trust no longer had the funds to keep them operating. (TV: The End of the World)