This has been processed to increase contrast and remove excess brightness from scattered sunlight, revealing extra detail in the comet tails.
The lower tail, which appears broad and fuzzy, is the dust tail of comet NEOWISE — created when dust lifts off the surface of the comet’s nucleus and trails behind the comet in its orbit.
Astronomers intend to use WISPR’s images to study the size of dust grains within the dust tail, as well as the rate at which the comet sheds dust.
The upper tail is the ion tail, constituted of gases ionised by losing electrons in the Sun’s intense light.
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