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What are coronal mass ejections?A coronal mass ejection (CME) is a vast cloud of electrically charged particles that the sun releases with a huge burst of speed.
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The 10 weirdest moons in the solar systemSome of the most fascinating worlds in our cosmic neighborhood are not planets, but the moons that orbit around them.
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Some of the universe's stars have gone missing. But where did they go?An international team of astronomers is on the hunt for objects that should be impossible.
