from the coming-into-focus dept.
The primary mirror for the James Webb Space Telescope (JWST) will consist of 18 separate mirror segments. The optics for the primary is now finally coming together with the mounting of the first mirror segment . Assembly of the full primary will occur over the next year and the curious can watch it come together minute-by-minute on the JWST Webbcams. Those wanting to see faster progress can break out their Benny Hill music[*] and watch JWST Time-Lapse movies.
[*] The tune is actually Yakety Sax.
The James Webb Space Telescope is due to launch on Saturday (Dec. 25) during a 32-minute window that opens at 7:20 a.m. EST (1220 GMT). The massive observatory will blast off from Kourou, French Guiana, atop an Ariane 5 rocket operated by European launch provider Arianespace. You can watch launch coverage live at Space.com beginning at 6 a.m. EST (1100 GMT) courtesy of NASA or you can watch directly at the agency's website.
ESA launch kit (PDF).
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