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March 11 marked the completion of an alignment stage called "fine phasing." "At this key stage in the commissioning of Webb's Optical Telescope Element, every optical parameter that has been checked and tested is performing at, or above, expectations," NASA said. NASA's Thomas Zurbuchen delivered a key message about the James Webb Space Telescope on Wednesday: It's going to deliver on its promise to see the universe in unprecedented depth and detail. Webb is already sending back proof of its ...