NASA’s Hubble Sees White Dwarf Eating Piece of Pluto-Like Object

September 18, 2025 10:00AM (EDT)Release ID: 2025-024
An illustration showing a glowing white object in the upper left corner. This object is encircled by hundreds of thin, concentric, pale-yellow rings on an angle from bottom left to top right. The rings are palest closest to the central, glowing white object. A curving trail of gray, rock-like fragments marches across the right side, through the thin rings and joins the rings at far right. Several large fragments of varying sizes appear in the foreground. These objects have white, comet-like tails streaking away from the glowing white object in the rings’ center. The curving trail of fragments bends toward the glowing white object. At the bottom left corner is the label Artist’s Concept.

Summary

Only Hubble with its unique ultraviolet vision could see this event

A celestial meal is taking place, and only the Hubble Space Telescope caught the feast in action. Just 260 light-years away — close in cosmic terms —  a burned-out star called a white dwarf is snacking on a fragment of a Pluto-like object. The Pluto analog came from the system’s own version of the Kuiper Belt, an icy ring of debris that encircles our solar system. As the exo-Pluto wandered too close to the star, the white dwarf tore it apart and began snacking on it.

Thanks to its unique ultraviolet vision, only Hubble could identify this event. Scientists using Hubble analyzed the chemical composition of the doomed object as its pieces fell onto the white dwarf. They were surprised to find water and other icy content indicating that the object came from far out in the system’s Kuiper Belt analog. Without Hubble’s ultraviolet capability, this material — unseen in visible light — would not have been detected.

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