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A comment on A giant European telescope rises as U.S. rivals await rescue. Parent comment

Re:A giant European telescope rises as U.S. rivals await rescue by poulpy123 on Thursday November 02, 2023 @07:42AM (#38112058)
What do you mean by solved ? optical interferometry exists since the 70s, and is used a lot. The VLT, Keck observatory, CHARA, LBT, NPOI. It's not has big as classical observation because there are a lot of disadvantages, but it exists
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