Big, strong rockets.
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.
Sputnik came as a surprise, the US did not know about it in advance.
It was launched into an elliptical low earth orbit.
sputnik-soviet satelite
the invention that the Aztecs came up with was the white flower
she came up with this invention called a radium she came p with it with concentration and hard work.
It was Joshua Tremelling's invention of the computer
I-pod
There is no one singular name associated with "invention" of Sputnik. It was a collaborative effort launched into space by the Russians (at the time called Soviets).
Steamboat
they came with the invention of clubs