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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 .
The Hubble telescope is named after astronomer Edwin Hubble and is one of NASA's Great Observatories. The Space Telescope Science Institute (STScI) selects Hubble's targets and processes the resulting data, while the Goddard Space Flight Center (GSFC) controls the spacecraft.
He was the Project Scientist for the NASA Kepler and K2 Exoplanet missions. Fred Hoyle: United Kingdom: 1915: 2001 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.
NGC 2261 was imaged as Palomar Observatory's Hale Telescope's first light by Edwin Hubble on January 26, 1949, [4] some 20 years after the Palomar Observatory project began in 1928. Hubble had studied the nebula previously at Yerkes and Mt. Wilson. [4] Hubble had taken photographic plates with the Yerkes 24-inch (60.96 cm) reflecting telescope ...
Hubble, assisted by Milton L. Humason, observed the magnitude of the redshift in many galaxies and published a paper in 1929 that showed the universe is expanding. The Hooker's reign of three decades as the largest telescope came to an end when the Caltech -Carnegie consortium completed its 200-inch (5.1 m) Hale Telescope at Palomar Observatory ...
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 ...
Hubble, Edwin (August 1947). "The 200-Inch Hale Telescope and Some Problems It May Solve". Publications of the Astronomical Society of the Pacific. 59 (349): 153– 167. doi: 10.1086/125931. JSTOR 40671816. Preston, Richard (1987). First Light: The Search for the Edge of the Universe. Atlantic Monthly Press. ISBN 978-0-87113-200-0.
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.