Elias 2-24 b Becomes the Youngest Known Planet, Under a Million Years Old
W. M. Keck Observatory, 65-1120, Mauna Kea Access Rd, Hawaiʻi County, Hawaii, United States
W. M. Keck Observatory
CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins83% CONFIDENCEOverall confidence: 83%How well the pin's source and references back up its dates.Weighted average of how firmly 2 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or betterScienceDaily[1] gives The Astrophysical Journal Letters publication on 16 September 2026, and Science Times[2] reported it on 22 September.
Reprocessing archived Keck images, astronomers have confirmed a Jupiter-size planet less than a million years old, 55 times Earth's distance from its star, forming far faster than planet-formation models allow.
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