image: After a 5,800-mile move, the James Webb Space Telescope has unpacked and settled into its temporary home... The James Webb Space Telescope has safely made it inside the cleanroom at its launch site at Guiana Space Center, in French Guiana! Read more about why this location was selected for launch: jwst.nasa.gov/content/about/launch.html After its arrival, Webb was carefully lifted from its packing container and then raised vertical. This is the same configuration Webb will be in when it is inside its launch vehicle, the Ariane 5 rocket. view more
Credit: Image credit: NASA/Chris Gunn
The launch readiness date for the James Webb Space Telescope is moving to no earlier than Dec. 22 to allow for additional testing of the observatory, following a recent incident that occurred during Webb’s launch preparations.
The incident occurred during operations at the satellite preparation facility in Kourou, French Guiana, performed under Arianespace overall responsibility. Technicians were preparing to attach Webb to the launch vehicle adapter, which is used to integrate the observatory with the upper stage of the Ariane 5 rocket. A sudden, unplanned release of a clamp band – which secures Webb to the launch vehicle adapter – caused a vibration throughout the observatory.
A NASA-led anomaly review board was immediately convened to investigate and instituted additional testing to determine with certainty the incident did not damage any components. NASA and its mission partners will provide an update when the testing is completed at the end of this week.
Webb was previously scheduled to launch Dec. 18 on an Arianespace Ariane 5 rocket from Kourou.
The Webb Space Telescope is an international partnership with the European and Canadian space agencies. It will explore every phase of cosmic history – from within our solar system to the most distant observable galaxies in the early universe, and everything in between. Webb will reveal new and unexpected discoveries, and help humanity understand the origins of the universe and our place in it.