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ScienceQuiet 3d · day 5

Rings around tiny asteroid Chariklo have changed over a decade

The 250-km-wide body is the smallest object known to have rings, and observations show they're evolving.

What to know

  • Chariklo is the smallest known body to possess rings, measuring roughly 250 kilometers in diameter.
  • Observations spanning the past decade show measurable changes in the asteroid's two rings.
  • The findings suggest ring systems around small bodies are dynamic and subject to evolution.

“Chariklo is only about 250 km across, but it has two rings, and they're changing.”

Ars Technica · Ars Technica

Chariklo Small asteroid with rings

How it unfolded 1 development · click the chart to see its coverage articlesposts

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Sep 20Sep 21Sep 22yesterdaynow · 3:48 AM ET
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    1. first by Ars Technica, 4d ago · also Ars Science

    • iaaa.org

      arstechnica.com/science/2026... Rings around a tiny body have changed over the past decade Chariklo is only about 250 km across, but it has two rings, and they’re changing.

      iaaa.orgBluesky3d ago7▲view on Bluesky ↗
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