I spent the week at Marshall Space Flight Center, as I often do, but this time, rather than testing mirrors I helped unload them from the cryo-vac test chamber.  This concludes test number 4, and leaves us just over a year left until Primary Mirror Testing is complete on the James Webb Space Telescope. 

I see these mirrors almost every day, but still every time deal with these mirrors it blow me away how awesome JWST is; how great the team is, and how much careful thought went into the science of making this thing work. 

We had quite an audience of MSFC personnel this time, and seeing their smiles was yet another great reminder.  I love showing new people the program or telling them about it for just that reason, the excitement and wonder is contagious, and revives my love of space stronger than ever.

Here are a couple photos from the week:

Also check out JWST General Summary

and JWST Ships 6 Mirrors

for a couple other recent developments and background info.