Which term denotes a person who studies space professionally?

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Multiple Choice

Which term denotes a person who studies space professionally?

Explanation:
Studying space professionally is the field of astronomy, and a person who does this work is an astronomer. An astronomer uses observations, measurements, and theories to understand celestial objects like stars, planets, and galaxies, as well as the overall structure of the universe. The other words don’t fit because they mean something unrelated: authentic means genuine, stumble upon is a casual phrase for finding something by chance, and wedged describes something stuck or tightly packed. So the correct term is astronomer.

Studying space professionally is the field of astronomy, and a person who does this work is an astronomer. An astronomer uses observations, measurements, and theories to understand celestial objects like stars, planets, and galaxies, as well as the overall structure of the universe. The other words don’t fit because they mean something unrelated: authentic means genuine, stumble upon is a casual phrase for finding something by chance, and wedged describes something stuck or tightly packed. So the correct term is astronomer.

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