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Giant Crescent

Featured on September 13, 2021

Voyager 2 captured this view of the giant planet Neptune shortly after flying past it in 1989. The image has been reprocessed to reveal subtle cloud features and other details in the planet's atmosphere. Methane in the upper atmosphere absorbs red light, making Neptune look blue. [NASA/JPL/Kevin M. Gill]

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Find out more in our radio program entitled

Neptune at Opposition

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Two stars trying to get in sync

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Giant Crescent

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