Live coverage: James Webb Space Telescope lifts off atop Ariane 5

Live coverage of the countdown and launch of an Ariane 5 rocket with the James Webb Space Telescope. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.


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Ariane 5 Clean Feed

NASA TV will provide live video coverage of the Ariane 5 launch with JWST beginning at 3 a.m. EST (0800 GMT) on Dec. 25. The Ariane 5 Clean Feed comes from the NASA TV Media Channel, which provides uninterrupted views of the Ariane 5 launch pad. The launch window opens at 7:20 a.m. EST (1220 GMT).