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month

(Encyclopedia) month, in chronology, the conventional period of a lunation, i.e., passage of the moon through all its phases. It is usually computed at approximately 29 or 30 days. For the…

Who, The

(Encyclopedia) Who, The, English rock music group formed in 1964. The members were Peter Dennis Blanford Townshend, 1945–, Chiswick, London, U.K…

Dysnomia

(Encyclopedia) Dysnomia, in astronomy, the moon, or natural satellite, of Eris.

Phoebe, in Greek mythology

(Encyclopedia) Phoebe, in Greek mythology, a Titan. She was the mother of Leto and Asteria and the grandmother of Artemis. In some legends she was identified with Artemis as the goddess of the moon.

Craters of the Moon National Monument and Preserve

(Encyclopedia) Craters of the Moon National Monument and Preserve, S central Idaho; est. 1924. The monument (53,438 acres/21,625 hectares) lies at the north end of the much larger preserve (698,940…

escape velocity

(Encyclopedia) escape velocity, the velocity a body must be given in order to escape the gravitational hold of some other larger body, e.g., the earth, moon, or sun. A body given less than the escape…

Brown, Margaret Wise

(Encyclopedia) Brown, Margaret Wise, 1910–52, American children's book author, b. Brooklyn, N.Y., B.A Hollins College, 1932. Continuing her education at the Bureau of Educational Experiments (now the…

Pickering, William Henry

(Encyclopedia) Pickering, William Henry, 1858–1938, American astronomer, b. Boston, grad. Massachusetts Institute of Technology (B.S., 1879). He taught at the Massachusetts Institute of Technology (…