Which term is the first artificial Earth satellite launched in 1957?

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Multiple Choice

Which term is the first artificial Earth satellite launched in 1957?

Explanation:
The main idea is recognizing the milestone of the first artificial satellite and its name. Sputnik is the name given by the Soviet Union to the first artificial object placed into Earth orbit in 1957, marking the start of the space age. Its successful launch showed that a man-made satellite could reach and circle the Earth, transmitting signals that could be picked up worldwide. The word Sputnik itself comes from Russian, meaning a fellow traveler or satellite, which fits how the project was viewed at the time. The other terms are ordinary English words with no connection to this historic space achievement, so they don’t fit as the name of the first satellite.

The main idea is recognizing the milestone of the first artificial satellite and its name. Sputnik is the name given by the Soviet Union to the first artificial object placed into Earth orbit in 1957, marking the start of the space age. Its successful launch showed that a man-made satellite could reach and circle the Earth, transmitting signals that could be picked up worldwide. The word Sputnik itself comes from Russian, meaning a fellow traveler or satellite, which fits how the project was viewed at the time. The other terms are ordinary English words with no connection to this historic space achievement, so they don’t fit as the name of the first satellite.

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