Astronomers have announced the discovery of a large object in the Kuiper Belt that appears to be a new candidate dwarf planet, designated 2026 ED138. The object was first spotted on Oct. 13, 2026, by astrophysicist Matthew Holman of the Harvard-Smithsonian Center for Astrophysics while he was analyzing observations from the NSF–DOE Vera C. Rubin Observatory in Chile [1][2].
One AU is the average distance from Earth to the Sun, about 93 million miles. If confirmed as a dwarf planet, it would join a group of only five other recognized objects that includes Pluto, the solar system’s former ninth planet [3].
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