3 ms·US Spy Satellites at Diffraction Limit for Resolution Since 19715 points by punnerud 5y agojdougan 5y agoI'm a bit surprised they hit the limit that early. I wonder what could improve this? Adaptive optics?jleyank 5y agoLeft-handed thinking…. Have they hit limits or do they merely want people thinking they have. Overconfident folks make mistakes.