Thursday, June 17, 2010
This Is the Sharpest Deep Space Picture Ever Taken From Earth: "The secret to the LBT's amazing star-gazing is its new adaptive optics system that compensates for atmospheric distortions. A secondary mirror, just .06 inches thin, can be subtly manipulated into different shapes to correct incoming light that's been bent by the atmosphere. The mirror can make adjustments accurate to ten nanometers every thousandth of a second. With those constant corrections, the LBT's 27.6-foot mirrors can get a clear shot into the cosmos."
at 9:43 PM