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astronomy
Book article from: The Columbia Encyclopedia, Sixth Edition
astronomy branch of science that studies the motions and natures of celestial...the study of matter and energy in the universe at large. Ancient Astronomy Astronomy is the oldest of the physical sciences. In many early civilizations...
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Astronomy
Encyclopedia entry from: The Gale Encyclopedia of Science
Astronomy Quantifying light — luminosity and spectral classes Astronomy, the oldest of all the sciences, is the scientific...celestial bodies and materials. Included within astronomy are the theories and observations that have been...
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Radio Astronomy
Encyclopedia entry from: UXL Encyclopedia of Science
Radio astronomy Matter in the universe emits radiation...radiation, X rays, and gamma rays. Radio astronomy is the study of celestial objects by...they can at night. Origins of radio astronomy No one individual can be given complete...
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gamma-ray astronomy
Book article from: The Columbia Encyclopedia, Sixth Edition
gamma-ray astronomy study of astronomical objects by analysis of the...such as supernovas and black holes , and gamma-ray astronomy can be considered an extension of X-ray astronomy to the extreme shortwave end of the spectrum . Gamma...
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Ultraviolet Astronomy
Encyclopedia entry from: The Gale Encyclopedia of Science
Ultraviolet Astronomy Ultraviolet astronomy, a part of the fields of astronomy and astrophysics, is the study of astronomical objects in the ultraviolet (UV) portion of the electromagnetic spectrum — specifically, from the extreme...
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X-ray astronomy
Book article from: The Columbia Encyclopedia, Sixth Edition
X-ray astronomy study of celestial objects by means of...from 0.01 to 10 nanometers. X-ray astronomy dates to 1949 with the discovery that...Uhuru satellite, one of NASA's small astronomy satellites, began to look specifically...
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Gamma-ray Astronomy
Encyclopedia entry from: The Gale Encyclopedia of Science
Gamma-ray Astronomy Gamma-ray astronomy is the study of gamma rays within the universe. Beginning...Hutchinson, Philip Morrison, and others, the field of gamma-ray astronomy developed. Gamma rays, often symbolized with the Greek letter...
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Infrared Astronomy
Encyclopedia entry from: The Gale Encyclopedia of Science
Infrared Astronomy Infrared astronomy is the study of infrared (IR) radiation, or that radiation...detect infrared light, but humans can feel it as heat. Infrared astronomy uses the wavelength range from about 0.75 to just less than...
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infrared astronomy
Book article from: The Columbia Encyclopedia, Sixth Edition
infrared astronomy study of celestial objects by means...universe was formed. The beginnings of IR astronomy can be traced to the discovery of IR...American astronomers. However, modern IR astronomy did not begin until the 1950s because...
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radar astronomy
Book article from: The Columbia Encyclopedia, Sixth Edition
radar astronomy application of radar to the determination...computed. This technique differs from radio astronomy in that the celestial object is here...the emission. The first yield of radar astronomy was a much improved value for the distance...
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