The target launch date for the James Webb Space Telescope is confirmed on 25 December, as early as possible within the launch window starting at 12:20 GMT / 13:20 CET.
According to the planning of operations, the Ariane 5 launcher will be rolled-out on 23 December, in the morning local time.
Click here for original story, Webb launch date confirmed for 25 December
Source: ESA Space News