Photo of the Day: Double Vision

Two F16 jets of the US Air Force Thunderbirds perform a back-to-back mirror flight during ‘Constanta Air Show 2011’ at Mihail Kogalniceanu airfield, near Constanta, Romania, 250 km from Bucharest, 08 June 2011. The US Thunderbirds squadron performed their aerobatic formation and solo flying stunts for the second time in Romania. (Robert Ghement/European Pressphoto Agency) Click to zoom.