The James Webb Space Telescope inside its clean room in French Guiana. Credit: ESA/CNES/Arianespace/P. Piron
NASA said Monday the launch of the $9.7 billion James Webb Space Telescope will be delayed at least four days until no earlier than Dec. 22 out of “sheer caution” to ensure the observatory suffered no damage from vibrations during a processing incident at its launch site in French Guiana.