Observable universe: Quick Facts

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first image from James Webb Space Telescope: galaxy cluster SMACS 0723

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

Astronomy Solar system Universe Cosmic microwave background Quasar Micrometeoroid Intergalactic medium Cosmic X-ray background Gravitational lens Cosmic neutrino background Star

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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