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Umbriel
(Encyclopedia)Umbriel ŭmˈbrēĕlˌ [key], in astronomy, one of the moons, or natural satellites, of Uranus. ...Portia
(Encyclopedia)Portia pôrˈshə [key], in astronomy, one of the natural satellites, or moons, of Uranus. ...Phobos
(Encyclopedia)Phobos fōˈbŏs [key], in astronomy, innermost moon, or natural satellite, of Mars. ...Oberon
(Encyclopedia)Oberon ōˈbərŏnˌ [key], in astronomy, one of the moons, or natural satellites, of Uranus. ...Sycorax
(Encyclopedia)Sycorax sĭkˈərăksˌ [key], in astronomy, one of the natural satellites, or moons, of Uranus. ...planet
(Encyclopedia)planet [Gr.,=wanderer], a large nonluminous body of rock, gas, or ice that orbits the sun or another star, has a rounded shape due to gravity, and has cleared its orbit of smaller objects. The term, o...earth, in geology and astronomy
(Encyclopedia) CE5 A. Cross section of the earth, showing its shells B. Detailed cross section of the crust and upper mantle: The lithosphere consists of the hard rock in the crust and upper mantle, lying above t...ether, in physics and astronomy
(Encyclopedia)ether or aether, in physics and astronomy, a hypothetical medium for transmitting light and heat (radiation), filling all unoccupied space; it is also called luminiferous ether. In Newtonian physics a...Shklovsky, Iosif Samuilovich
(Encyclopedia)Shklovsky, Iosif Samuilovich yôsˈĭf səmo͞oēlˈəvĭch shklŏfˈskē [key], 1916–85, Soviet astronomer. He was head of the department of radio-astronomy at the Sternberg Astronomical Institute,...IRAS
(Encyclopedia)IRAS: see infrared astronomy.Browse by Subject
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