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Astronomers Flag 2026 ED138 Beyond Neptune as Possible New Dwarf Planet

Rosa M. Garcia·October 29, 2026·2 min read

Media Indonesia reported on Thursday that an object designated 2026 ED138 has been found beyond the orbit of Neptune and is being considered a candidate dwarf planet. The discovery was covered alongside other outlets, including Vietnam.vn, which described the find as a mysterious body at the edge of the solar system.

According to coverage cited by gadget.qoo10.co.id, the object could measure up to 1,500 kilometers across. That size estimate is central to the dwarf planet question, since it places 2026 ED138 among the larger bodies known in the distant reaches past Neptune.

The reporting does not specify who made the discovery, which observatory or survey was involved, or how the size was measured. Media Indonesia's headline frames the object as "mysterious," and the available summaries give no details on its surface, composition, or orbital path.

The term dwarf planet refers to a category of round, planet-like bodies that share their orbital neighborhood with other objects. Pluto is the best-known example, and the region beyond Neptune is where most candidates of this kind have been identified.

Vietnam.vn framed the find as a suspected new dwarf planet at the solar system's edge, while Media Indonesia presented it as a candidate rather than a confirmed classification. No official body has been cited as having formally designated 2026 ED138 as a dwarf planet.

What to watch next: confirmation of the object's size and orbit, and whether an astronomical authority formally recognizes it as a dwarf planet.

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