Porter-area historical tornado activity is near Oklahoma state average. It is 167% greater than the overall U.S. average.
The Space Shuttle program, officially called the Space Transportation System (STS), was the United States government's manned launch vehicle program from 1981 to 2011, administered by NASA and officially beginning in 1972.
Best Answer: Technically, it began with unpowered glide tests of the prototype shuttle Enterprise, but from your choices, it's A. Columbia was flown on its maiden space flight by John Young, who earlier walked on the moon as Commander of Apollo 16, and Robert Crippen.