Giacconi, Riccardo,1931–, Italian-American astrophysicist, b. Milan, Italy, Ph.D. Univ. of Milan 1954. He was a researcher at American Science and Engineering Corporation (1959–73), professor at Harvard (1973–81), director of the Space Telescope Science Institute, Johns Hopkins (1981–92), director general of the European Southern Observatory in Germany (1992–99), and president of Associated Universities, Inc. (1999–2004). In 2004, he was appointed professor at Johns Hopkins. Giacconi was co-recipient, with Masatoshi KoshibaKoshiba, Masatoshi,
1926–, Japanese physicist, Ph.D. Univ. of Tokyo, 1955. He has been a professor at the Univ. of Tokyo since 1958. Koshiba received the 2002 Nobel Prize in Physics with Riccardo Giacconi and Raymond Davis for their pioneering contributions to astrophysics.
..... Click the link for more information. and Raymond DavisDavis, Raymond, Jr.,
1914–2006, American astrochemist, Ph.D. Yale Univ. 1942. Davis, who served in the Army Air Forces from 1942 to 1946, was a researcher at Monsanto Chemical Company (1946–48) and Brookhaven National Laboratory (1948–84).
..... Click the link for more information. , of the 2002 Nobel Prize in Physics for pioneering contributions to astrophysics. Giacconi discovered X-ray sources outside the solar system, including background X-radiation and black holes; his discoveres and work on instruments that identified those discoveries laid the foundations for the field of X-ray astronomyX-ray astronomy,
study of celestial objects by means of the X rays they emit, in the wavelength range from 0.01 to 10 nanometers. X-ray astronomy dates to 1949 with the discovery that the sun emits X rays.
..... Click the link for more information. .