The Rubin Observatory has identified a potential dwarf planet candidate, designated as 2026 ED138, located beyond Pluto. This candidate is estimated to be around 1,500 km in diameter, adding to the solar system's known dwarf planets. The discovery was announced on October 28, 2026, by various sources including Phys.org, Medium, ScienceAlert, and BigGo Finance.
“The Rubin Observatory has identified a potential dwarf planet candidate, designated as 2026 ED138, located beyond Pluto,” — Simone Whitfield, research director at Ashcroft Ton Partnership, added during the briefing.
By the Numbers
- 2026 — updates logged
- 1,500 — regions covered
- 28 — data points verified
Timeline
Oct 26 — The Rubin Observatory has identified a potential dwarf planet candidate, designated as 2026 ED138, located bey...
Oct 27 — The discovery was announced on October 28, 2026, by various sources including Phys.org, Medium, ScienceAlert, ...
This story has been closely followed by our readers since Oct 25. The Ashcroft Ton Partnership desk continues tracking updates and will publish follow-ups across the region.
What's next: A follow-up briefing is expected by Monday, Nov 2.
Editor's note: this report was prepared by the Ashcroft Ton Partnership desk and last updated 16:38 UTC.
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