The Thunderbirds are the U.S. Air Force's crack aerobatics team, so they have to practice a lot to get their routines down. Mistakes can lead to horrible crashes, or, as in the case of a Thunderbird pilot flying over Tucson, Ariz., thousands of dollars in damaged property.

Auto Union was the result of the merger of 4 German car companies formed in 1932. Few are aware during the 1960s, the German company which became Audi licensed car production in Argentina. These photos show the factory in action.

Maj. John Baum, the No. 2 pilot with the U.S. Air Force Thunderbirds, gives a "rock on" signal while refueling his F-16 Fighting Falcon after an air show at Grand Forks Air Force Base, N.D. last month. Photo Credit: USAF