A scarlet star looms behind the ruins of an exoplanet that resembles the shape of a skull. A red galaxy arm is visible in the background. It is apparent that this galaxy, named MACS 2129-1, has been decaying since it stopped producing stars only a few billion years after the big bang.

This chillingly haunted galaxy mysteriously stopped making stars only a few billion years after the Big Bang! It became a cosmic cemetery, illuminated by the red glow of decaying stars. Dare to enter, and you might encounter the frightening corpses of exoplanets or the final death throes of once-mighty stars.

Credit

NASA-JPL/Caltech

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