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Landmark Survey Reveals 74 Exocomet Belts Orbiting Nearby Stars

Learn what this survey recorded of exocomet belts, which imaged and identified bands of every size.

BySam Walters
30 of the exocomet belts, as imaged in this study, showing the extreme variation in such belts.Credit: Prof Luca Matra, Trinity College Dublin.

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Astrophysicists have taken images of a large sample of exocomet belts for the first time, imaging the bands along with the tiny pebbles that orbit within. The images were published in a study in Astronomy and Astrophysics, showing bands of a variety of structures.

“The images reveal a remarkable diversity in the structure of belts,” said Sebastián Marino, a study author and an astronomer at the University of Exeter, according to a press release. “Some are narrow rings […] but a larger number of them are wide, and probably better described as ‘disks’ rather than rings.”

Read More: How Are Exoplanets Discovered?

In our own Solar System, comet belts are bands of comets and other objects that orbit the Sun. The Kuiper Belt is one such band, orbiting the Sun beyond the reach of Neptune. Formed from the remnants of the birth of the Solar System, the Kuiper Belt is ...

  • Sam Walters

    Sam Walters is the associate editor at Discover Magazine who writes and edits articles covering topics like archaeology, paleontology, ecology, and evolution, and manages a few print magazine sections.

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