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Bruce Murray Space Image Library

Star shells of dust

Star shells of dust
Star shells of dust The James Webb Space Telescope captured this image of cosmic dust shells created by the interaction of the binary stars of Wolf-Rayet 140. The remarkable regularity of the shells’ spacing indicates that they form like clockwork during the stars’ eight-year orbit cycle, when the two members of the binary make their closest approach to one another. NASA, ESA, CSA, STScI, JPL-Caltech