Hubble, Edwin

An American astronomer who lived from 1889 to 1953. Hubble discovered the expansion of the universe by measuring the red shifts of many galaxies. He also discovered that the recession velocity of a given galaxy is proportional to its distance from the Milky Way. Hubble Space Telescope is named after him.

Expanding the Universe

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Expanding the Universe

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Expanding the known universe

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Hubble Constant

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Hubble Constant

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One of astronomy’s most important numbers

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Astronomical Firsts

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Who made the first map of the universe?

Maps of the stars are nearly as ancient as human culture itself; inscriptions describing the positions of stars and constellations

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