451Who was the first American astronaut to travel into space?
452Who was the first human to walk on the Moon?
453In which year did the Apollo 11 mission achieve the first crewed Moon landing?
454Who was the first woman to travel into outer space?
455Who performed the first spacewalk in history?
456In which year was NASA, the United States space agency, founded?
457Which Apollo mission achieved humanity’s first crewed Moon landing?
458Which is the largest planet in the solar system?
459Which is the smallest planet in the solar system?
460Which planet is closest to the Sun?
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