Comet Sliding Spring

Comet Sliding Spring

Comet

This composite of Comet Sliding Spring (C/2013 A1) merges images taken between May 27 and May 29 with the ultraviolet optical telescope on NASA's Swift satellite. Sunlight reflected from the comet's dust, which produces most of the light in this image, appears yellow. Ultraviolet light produced by hydroxyl (OH), a molecular fragment of water, appears violet in this image.

Image: NASA/Swift/D. Bodewits (UMD), DSS
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