James Webb Space Telescope marks deployment of all mirrors - Space.com
After nearly a full month in space, the James Webb Space Telescope, also known as JWST or Webb, is nearly at the end of its deployment work."Just in from the @NASAWebb team: All 18 primary mirror segments and the secondary mirror are now fully deployed!" NASA Administrator Bill Nelson wrote in a tweet posted on Wednesday (Jan. 19).Live updates: NASA's James Webb Space Telescope mission.Related: How the James Webb Space Telescope works in pictures.
JWST's golden primary mirror includes 18 individual hexagonal segments, each controlled by seven actuators that allow precise movements.— NASA's $10 billion James Webb Space Telescope launches on epic mission to study early universe.— James Webb Space Telescope: The scientific mysteries no other observatory could unravel.
— James Webb Space Telescope: The engineering behind a 'first light machine' that is not allowed to fail .
Get breaking space news and the latest updates on rocket launches, skywatching events and more