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Wednesday, October 11th
In this Oct. 10, 2017 photo a F/A-18 Hornet of the Swiss Air Force performs a highspeed fly and makes the sonic barrier visible when the Swiss Air Force pilots show their skills in the Swiss Alps above Axalp Ebenfluh. At an altitude of 2,200 m above sea level, spectators could marvel at a unique aviation display performed at the highest air force firing range in Europe. (Christian Merz/Keystone via AP)