JWST Mirror Alignment Begins

James Webb Space Telescope
James Webb Space Telescope
Credit: ESA/Arianespace
CAPE CANAVERAL—Engineers at the Space Telescope Science Institute in Baltimore have begun a three-month process to align the 18 segments of the James Webb Space Telescope (JWST) primary mirror, fine-turning its shape so that it operates as a unified, 21-ft.-dia. mirror, NASA said on Feb. 3. The work...

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