HALLEY'S __ Crossword Clue

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Crossword Puzzle Infos
Halley's COMET is a periodic COMET that can be seen from Earth every 75-76 years. It was first observed in 1705 by English astronomer Edmond Halley, who used Newton's laws of motion to predict its return. The COMET is named after him and is also known as 1P/Halley. It is composed of ice, dust, and rocky material and is visible from Earth when it is close enough to the Sun.
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