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Assuming "comets" is a general topic | Use as a class of astronomical objects or a spacecraft or a word instead
Astronomy
Comets

Comets

compute location and other properties of a comet

Halley's comet

compare multiple comets

C/2006 U7 (Gibbs), Comet Encke

compute a property of a comet

last perihelion of Comet Holmes

do computations involving comet properties

surface area Halley's Comet / area Martha's Vineyard

 
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