The USHPA began as the Southern California Hang Gliding
Association in 1971 and shortly afterwards, in March of 1974,
became the United States Hang Gliding Association (USHGA),
headquartered in southern California.
Blue ice in the context of aviation is the frozen material
formed by leaks in commercial aircraft lavatory waste tanks, a
mixture of human waste and liquid disinfectant that freezes at high
altitude. The name comes from the blue color of the
"We need to complete more work to have a better
understanding before flying."
Source: Bill Gerstenmaier, associate
administrator for Space Operations at NASA Headquarters in
Washington. Gerstenmaier chaired Friday's Flight Readiness Review
on the upcoming STS-119 mission, to be flown by the shuttle
Discovery. NASA managers decided Friday more data and possible
testing are required before proceeding to launch. Engineering teams
have been working to identify what caused damage to a flow control
valve on shuttle Endeavour during its November 2008 flight.