Ten people were killed on Tuesday when an Guatemalan Air Force helicopter crashed in northern Guatemala after being sent to help with another helicopter crash in the region, defense officials said. There were no survivors.
On this day in 1985, Space Shuttle Challenger is launched on what would be its final successful mission; in 1976 a Pan Am 747SP sets a speed record for a trans-polar round-the-world flight; in 1908, Henry Farman completes Europ...