James Webb space telescope mirror segment - GIF

[Altair]

One of eighteen hexagonal mirror segments of the James Webb space telescope. The mirrors are made of gold-coated beryllium which combine to form a 6.5 m (21 ft) diameter mirror.




Previously:

Webb Space Telescope packing timelapse - GIF
Arecibo telescope collapse - GIF
Casting a $20 million mirror for the world's largest telescope - video
Moving giant telescopes - GIF
Hyper Suprime-Cam telescope camera - photo

[DIYSwede]

Due to adverse weather conditions, there's a delay:

The new targeted launch date is Dec. 25, as early as possible within the following launch window:

Between 7:20 a.m. and 7:52 a.m. Washington
Between 9:20 a.m. and 9:52 a.m. Kourou
Between 12:20 p.m. and 12:52 p.m. Universal (UTC)
Between 1:20 p.m. and 1:52 p.m. Paris
Between 9:20 p.m. and 9:52 p.m. Tokyo

Tomorrow evening [Dec 24th], another weather forecast will be issued in order to confirm the date of December 25.
The Ariane 5 launch vehicle and Webb are in stable and safe conditions in the Final Assembly Building.

Could be seen at:

Season's Greetings to all HMTers from Johan @ ca 60 deg N