Webb telescope’s massive mirror hit by micrometeoroid
CNNSign up for CNN’s Wonder Theory science newsletter. CNN — One of the 18 golden segments of the James Webb Space Telescope’s giant mirror was hit by a micrometeoroid in May, according to an update from NASA. “We always knew that Webb would have to weather the space environment, which includes harsh ultraviolet light and charged particles from the Sun, cosmic rays from exotic sources in the galaxy, and occasional strikes by micrometeoroids within our solar system,” said Paul Geithner, technical deputy project manager at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, in a statement. Looking ahead The Webb team will work closely with micrometeoroid prediction experts at NASA’s Marshall Space Flight Center in Huntsville, Alabama. “With Webb’s mirrors exposed to space, we expected that occasional micrometeoroid impacts would gracefully degrade telescope performance over time,” said Lee Feinberg, Webb optical telescope element manager at NASA Goddard, in a statement.
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