The moonquakes resulted from formation and subsequent activity along a relatively young thrust fault crossing the Taurus-Littrow Valley floor, the site of the last Apollo mission in 1972. The fault ...

The exhibition, "Aerospace and Our Changing Environment" in the Allan and Shelley Holt Innovations Gallery at the National Air and Space Museum in Washington, DC.

Colonel Fred J. Christensen, Jr., was born in Watertown, Massachusetts, on October 17, 1921. He attended both Boston University and M.I.T. before entering the U.S. Army Air Corps. Christensen joined ...