 Complete the following phrase:  In 1986, following the Space Shuttle Challenger accident, Barbree placed a telephone call to a friend and retired employee of NASA, who  as a favor to Barbree  went to Kennedy Space Center, looked over the accident information and analysis being done, and reported the early findings to Barbree. Consequently, Barbree was the first journalist to report on the source of the destruction of the Space Shuttle Challenger: faulty O-rings. He was also part of the NBC News Space Unit that won an Emmy award for NBCs coverage of the Apollo 11 Moon landing. Following the 2003 