___ cloud (region of comets far beyond Pluto) Crossword Clue
4 letters · New York Times · Thursday, August 20, 2009 · 33-Down
Appeared in 1 New York Times Crossword: Thursday, August 20, 2009.
Exact puzzle match · New York Times · August 20, 2009 · 33-Down · 4 letters
OORT0 of 4 letters revealed
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What does this clue mean?
Dutch astronomer who proved that the galaxy is rotating and proposed the existence of the Oort cloud (1900-1992)
noun · fill-in-the-blank
WordNet® (Princeton University)
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