Ball Aerospace, who built the optics, announcing that all of the mirror segments have been released from their locked, launch position and are ready for calibra

Ball Aerospace, who built the optics, announcing that all of the mirror segments have been released from their locked, launch position and are ready for calibration. Hundreds of moving parts, no longer a risk to the observatory! Congratulations! Next up in the whole unfolding and unpacking thing: the mirror has to be fine-tuned. And then there's some flex at various levels, as the instruments continue to cool down. So there are motors to bend the mirrors, at a scale relative to the wavelength of the observed light: 100s of nanometers, I think. Is the mirror going to require periodic mirror adjustment? Or is this a one-time deployment process? . (I'm used to thinking in terms of adaptive optics, correcting for atmospheric distortion in real time -- but hang on, the JWST is in heavy vacuum of space...)