Edwin Powell Hubble is renowned for determining that there are other galaxies in the Universe beyond the Milky Way, and for observing that the universe is expanding at a constant rate. Hubble was ...
The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to ...
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How Edwin Hubble won the Great DebateIn 1912, Harvard College Observatory Director Edward Pickering ... as to the nature of the nebulae was still in doubt. Enter Edwin Hubble. Hubble and the Hooker 100-inch Telescope Hubble arrived ...
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One large Milky Way galaxy or many galaxies? 100 years ago, Edwin Hubble settled astronomy's 'Great Debate'Edwin Hubble was young and ambitious ... She worked at the Harvard College Observatory as a "human computer," laboriously measuring the positions and brightness of thousands of stars on ...
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