Edwin Powell Hubble

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Noun1.Edwin Powell Hubble - United States astronomer who discovered that (as the universe expands) the speed with which nebulae recede increases with their distance from the observer (1889-1953)
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Also on This Day: 1752: Birth of poet ThomasChatterton; 1787: Birth of ship owner Sir Samuel Cunard; 1889: Birth of American astronomer Edwin Powell Hubble; 1912: Birth of Welsh rugby union international Wilf Wooller, who guided Glamorgan to their first County Championship; 1944: After five years of blackout, the lights were switched on in London at Piccadilly, the Strand and Fleet Street; 1947: The Queen (then Princess Elizabeth) married the Duke of Edinburgh; 1951: Snowdonia became a National Park; 1977: President Sadat of Egypt visited Israel for peace talks.
Named for Edwin Powell Hubble (see 1923, Cepheids in Andromeda, and 1929, Receding Galaxies), who discovered some of the phenomena it was designed to explore, the boxcar-size unmanned observatory was, at 12 tons, the largest satellite ever launched.
However, it would be 1970 by the time NASA collaborated with European Space Agency (ESA) to get the first instruments and solar panels for Hubble - named after astronomer Edwin Powell Hubble.