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Compare the two mid-infrared images taken by the James Webb Space Telescope of Wolf-Rayet 140, a system of dust shells ejected by two massive stars that are in an elongated orbit. Look to the top right of the first two images. Two triangles are matched up to show how much difference 14 months makes: The dust is racing away from the central stars at almost 1% the speed of light and no longer lines up in the third image.