Faced with the job of carefully putting together the $8.8 billion James Webb Space Telescope, NASA and lead contractor Northrop Grumman are starting to run practice assembly tests using a "pathfinder" telescope.
Faced with the job of carefully putting together the $8.8 billion James Webb Space Telescope, NASA and lead contractor Northrop Grumman are starting to run practice assembly tests using a "pathfinder" telescope.
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