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Taylor, Joseph Hooton, Jr.

(Encyclopedia)Taylor, Joseph Hooton, Jr., 1941–, American astrophysicist, b. Philadelphia, Ph.D. Harvard, 1968. Taylor was a professor at the Univ. of Massachusetts at Amherst from 1969 to 1980, when he joined th...

X-ray astronomy

(Encyclopedia)X-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 ...

nucleosynthesis

(Encyclopedia)nucleosynthesis or nucleogenesis, in astronomy, production of all the chemical elements from the simplest element, hydrogen, by thermonuclear reactions within stars, supernovas, and in the big bang at...

Star-Spangled Banner, The

(Encyclopedia)Star-Spangled Banner, The, American national anthem, beginning, “O say can you see by the dawn's early light.” The words were written by Francis Scott Key, a young Washington attorney who during t...

Cohen, Samuel Theodore

(Encyclopedia)Cohen, Samuel Theodore, 1921–2010, American physicist known as the “father of the neutron bomb,” b. Brooklyn, N.Y., grad. Univ. of California, Los Angeles, 1943. He worked on the Manhattan Proje...

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