Science
How many Earth years does it take Mars to go around the Sun?
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In which constellation was the first double star observed?
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What piece of polished, cut glass can we use to see the spectrum of visible light?
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What organelles are also known as the powerhouses of the cell?
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Which is also called the "Root of Life" or "Man Root"?
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What university did astronomy and space science theorist Carl Sagan teach at?
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Which one of the original 7 astronauts sported the middle name of Herschel?
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