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Edwin Powell Hubble (November 20, 1889 – September 28, 1953) [1] was an American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology .
Edwin Powell Hubble: United States: 1889: 1953: Hubble proved that many objects previously thought to be clouds of dust and gas and classified as "nebulae" were actually galaxies beyond the Milky Way. He provided evidence for Hubble–Lemaître law, the fact that the universe is ever expanding. William Huggins: United Kingdom: 1824: 1910 ...
In 1929, Edwin Hubble provided a comprehensive observational foundation for Lemaitre's theory. Hubble's experimental observations discovered that, relative to the Earth and all other observed bodies, galaxies are receding in every direction at velocities (calculated from their observed red-shifts) directly proportional to their distance from ...
Later in the 1920s, Edwin Hubble showed that Andromeda was far outside the Milky Way by measuring Cepheid variable stars, proving that Curtis was correct. [6] It is now known that the Milky Way is only one of as many as an estimated 200 billion (2 × 10 11) [7] to 2 trillion (2 × 10 12) or more galaxies in the observable Universe.
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It was the only asteroid discovery made by famous American astronomer Edwin Hubble, while observing distant galaxies at Mount Wilson Observatory in California on 30 August 1935. [1] The rather spherical X-type asteroid has a rotation period of 5.3 hours. [3] It was named for the Cincinnati Observatory. [1]
A post shared on social media purportedly shows that former Secretary of State Colin Powell said people should stop complaining about “lazy immigrants” because white people enslaved others to ...
The Sun in the first light image from the IRIS satellite. The famous 5.08-metre (200 in) Hale Telescope of Palomar Observatory saw first light on 26 January 1949, targeting NGC 2261 [2] under the direction of American astronomer Edwin Powell Hubble.