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Aquila, in astronomy

(Encyclopedia)Aquila [Lat.,=the eagle], equatorial constellation located N of Sagittarius and Capricornus, lying partly in the Milky Way. It is sometimes depicted as an eagle. It contains the bright star Altair (Al...

ruby

(Encyclopedia)ruby, precious stone, the transparent red variety of corundum, found chiefly in Myanmar, Thailand, and Sri Lanka and classified among the most valuable of gems. The Myanmarese stones are blood red, th...

Lee, David Morris

(Encyclopedia)Lee, David Morris, 1931–, American physicist, b. Rye, N.Y., Ph.D. Yale, 1959. Lee joined the faculty at Cornell in 1959, moving to Texas A&M Univ. in 2009. He was a co-recipient, with Douglas Os...

neutrino astronomy

(Encyclopedia)neutrino astronomy, study of stars by means of their emission of neutrinos, fundamental particles that result from nuclear reactions and are emitted by stars along with light. Approximately 100 billio...

Ursa Major and Ursa Minor

(Encyclopedia)Ursa Major ûrˈsə [key] and Ursa Minor [Lat.,=the great bear; the little bear], two conspicuous northern constellations. Known to many peoples from ancient times, these constellations have had vario...

Temple, Shirley

(Encyclopedia)Temple, Shirley, 1928–2014, American child film star, b. Santa Monica, Calif., as Shirley Jane Temple. She started in movies at three-and-a-half and starred in her first feature (Stand Up and Cheer!...

Canopus, in astronomy

(Encyclopedia)Canopus, in astronomy, 2d brightest star in the sky, located in the constellation Carina, which is part of the ancient constellation Argo Navis; Bayer designation α Carinae; 1992 position R.A. 6h23.8...

Fisher, Carrie Frances

(Encyclopedia) Fisher, Carrie Frances , 1956-2016, American actress and author, b. Burbank, Ca. Fisher’s parents were singer Eddie Fisher and actress/dancer Debbie ...

chain reaction

(Encyclopedia)CE5 Chain reaction: A neutron (n) strikes the uranium nucleus (U-235), causing it to split into fission products A and B and release two neutrons. These neutrons can in turn cause further fissions....

Draco, in astronomy

(Encyclopedia)Draco [Lat.,=the dragon], northern constellation lying SE of Ursa Minor and N of Lyra and Hercules. It is traditionally depicted as a dragon. Draco contains the bright star Eltanin (Gamma Draconis). T...