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Prisca

(Encyclopedia)Prisca prĭsˈkə [key], in the New Testament, wife of Aquila. ...

Priscilla

(Encyclopedia)Priscilla prĭsĭlˈə [key] [diminutive of Lat. Prisca=ancient], in the New Testament, wife of Aquila. ...

gamma-ray astronomy

(Encyclopedia)gamma-ray astronomy, study of astronomical objects by analysis of the most energetic electromagnetic radiation they emit. Gamma rays are shorter in wavelength and hence more energetic than X rays (see...

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 ...

In

(Encyclopedia)In, symbol for the element indium. ...

Cygnus

(Encyclopedia)Cygnus sĭgˈnəs [key] [Lat.,=the swan], northern constellation located SE of Draco and NW of Pegasus. It was depicted as a bird by most ancient cultures. It is sometimes called the Northern Cross be...

Altair

(Encyclopedia)Altair ăltäˈĭr [key], brightest star in the constellation Aquila (Eagle); Bayer designation α Aquilae; 1992 position R.A. 19h50.5m, Dec. +8°51′. Its apparent magnitude is 0.74, making it one o...

National Radio Astronomy Observatory

(Encyclopedia)National Radio Astronomy Observatory (NRAO), federal observatory for radio astronomy, founded in 1956 and operated under contract with the National Science Foundation by Associated Universities, Inc.,...

Nuffield Radio Astronomy Laboratories

(Encyclopedia)Nuffield Radio Astronomy Laboratories: see Jodrell Bank Observatory. ...

Young, Charles Augustus

(Encyclopedia)Young, Charles Augustus, 1834–1908, American astronomer, b. Hanover, N.H., grad. Dartmouth, 1853. He discovered the reversing layer of the solar atmosphere and proved the gaseous nature of the sun's...