U.S. Sen. John H. Glenn Jr., STS-95 payload specialist, focuses in on a target of opportunity as he participates in earth observations photography during the nearly nine-day Space Shuttle mission aboard Discovery.
U.S. Sen. John H. Glenn Jr., STS-95 payload specialist, focuses in on a target of opportunity as he participates in earth observations photography during the nearly nine-day Space Shuttle mission aboard Discovery.Image Credit: NASA