James Webb Space Telescope: Sun shield is fully deployed
The new James Webb telescope has passed a major milestone in its quest to image the first stars to shine in the cosmos by completing the deployment of the space observatory's giant kite-shaped sun shield. James Webb was launched on 25 December on an Ariane rocket from French Guiana. The telescope is regarded as the successor to the Hubble space observatory which is now 31 years old and nearing the end of its operational life. Commissioning work will now concentrate on unpacking the telescope's mirrors, the largest of which is 6.5m wide.
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