Mirror, mirror, mirror...

Today's Technology Review update has a nice article on the segmented beryllium mirror that is being developed for the James Webb Space Telescope (JWST). The article links to a brief video that has some interview segments with project scientists, and excerpts of an animation showing the JWST space deployment sequence. The YouTube video shown here is longer (2'24") and shows the complete sequence with music (but no narration). These videos don't convey the size of JWST. The thing will be enormous.