ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins56% CONFIDENCEOverall confidence: 56%How well the pin's source and references back up its dates.Weighted average of how firmly 3 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 from 50% to 74% confidence
Given as a target, not a fixed date, per en.wikipedia.org[1]: "…and construction in July 2023, with the expected completion and first light set for March 2029.[13][…"A 39-metre segmented mirror in Chile's Atacama, collecting more light than all existing 8-10 metre telescopes combined. Estimated date.
≈$1.3B
1.00
