The Herschel Space Observatory managed to get a picture of a cosmic halo in the Brobdingnagian cloud of gas and dust called NGC 7538 . Normally , ring like this are triggered by the wind of O - case star or by their supernovae . But there ’s no O - type star remnant at the center of this ring . Did a star blow this house of cards and then move on , before Herschel got its moving-picture show ?
Image credit : ESA / NASA / JPL - Caltech / Whitman College
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