on 4 October 1957, the Soviet Union launched the first artificial satellite, Sputnik 1, into orbit around the Earth. This is considered to be the beginning of the space age. Before this date there were no man made satellites in space but on every single day since then there have been artificial satellites around the Earth. Today there are over 1000 active satellites in orbit (Union of Concerned Scientists 2017) and many times that number of defunct ones.
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Answer:
the start of the space age
Explanation:
on 4 October 1957, the Soviet Union launched the first artificial satellite, Sputnik 1, into orbit around the Earth. This is considered to be the beginning of the space age. Before this date there were no man made satellites in space but on every single day since then there have been artificial satellites around the Earth. Today there are over 1000 active satellites in orbit (Union of Concerned Scientists 2017) and many times that number of defunct ones.