Science

What is the study of stars, planets and galaxies called?

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What dust-like particles are only found on plants like ferns, mosses and mushrooms?
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How long does it take for Saturn to rotate completely on its axis (a typical day)?
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What section of an insect's body are the legs and wings attached to?
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What is the speed of sound called?
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Which of these is the best definition of a compound machine?
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The oldest living tree is 4,843 years old and can be found where?
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What is the distance between two peaks of a wave called?
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How many Earth years does it take Mars to go around the Sun?
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