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Sputnik 1 Sputnik 1
Sputnik 1.
Sputnik
It means it was the first sputnik.
After the launches by the USSR of Sputnik 1 (October 4, 1957) and Sputnik 2 (November 3, 1957), the US finally succeeded with Explorer 1 on January 31, 1958. Sputnik 1 had already fallen from orbit, and Sputnik 2 did so as well in April, 1958, following the March launch of Vanguard 1, the second US satellite and the oldest satellite still orbiting the Earth.
Sputnik 1 was a Russian satellite.
Sputnik was the "family name" for a series of satellites, so there never was a satellite named only Sputnik. They all had numbers with Sputnik 1 being the first.
Because the Sputnik program ended with Sputnik 3. Albeit there was a Sputnik 40 and 41 but these were to commemorate the 40th anniversary of Sputnik 1.
the name of the first satellite is Sputnik
Sputnik 1 and Sputnik 2 were artificial satellites that traveled around the Earth. People thought that Sputnik 1 was spying on them, but all it did was transmit a simple tracking signal for 3 weeks.
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The only known contents of Sputnik 1 are Electronics and some batteries.