Radio source: Quick Facts

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Photos

Oval map of the cosmic microwave background radiation from NASA's WMAP mission, showing a mottled pattern of blue, green, yellow, and red representing temperature variations.

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Topics

H II region Quasar pulsar Radio jet extragalactic radio source radio emission Hydrogen cloud line radiation continuum radiation blackbody radiation Star Galaxy Solar system Star cluster Cosmic microwave background Planet X-ray source Constellation Black hole Intergalactic medium

Key People

Sir Martin Ryle.

Sir Martin Ryle

British astronomer

Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

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The orbits of the planets and other elements of the solar system, including asteroids, Kuiper belt, Oort cloud, comet

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