FILE - In this Jan. 27, 1970, file photo, Dr. Ernest J. Sternglass, professor of radiation physics at the University of Pittsburgh, holds radiation charts, which will be shown on a British television program on pollution dust, in London. Sternglass, whose research helped make it possible for the world to see the first moon walk, has died at age 91 of heart failure. Sternglass died Feb. 12, 2015, in Ithaca, N.Y., Cornell University said. His research helped lead to a sensitive television camera tube that captured low-light lunar action during the 1969 moon landing and U.S. astronaut Neil Armstrong's historic first steps. (AP Photo/L. Brown, File)