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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.
"A history of cancer chemotherapy." Cancer research 68.21 (2008): 8643-8653. Online. Faguet, Guy B. "A brief history of cancer: age‐old milestones underlying our current knowledge database." International journal of cancer 136.9 (2015): 2022-2036. online, down to 1942. Hajdu, Steven I. "A note from history: landmarks in history of cancer ...
Henrietta Swan Leavitt (/ ˈ l ɛ v ɪ t /; July 4, 1868 – December 12, 1921) was an American astronomer. [2] [1] [3] Her discovery of how to effectively measure vast distances to remote galaxies led to a shift in the scale and understanding of the scale and the nature of the universe. [4]
Later observations (by Hubble himself, among others) showed Hubble's belief to be correct and the S0 class was included in the definitive exposition of the Hubble sequence by Allan Sandage. [12] Missing from the Hubble sequence are the early-type galaxies with intermediate-scale disks, in between the E0 and S0 types, Martha Liller denoted them ...
George Ellery Hale (June 29, 1868 – February 21, 1938) was an American astrophysicist, best known for his discovery of magnetic fields in sunspots, and as the leader or key figure in the planning or construction of several world-leading telescopes; namely, the 40-inch refracting telescope at Yerkes Observatory, 60-inch Hale reflecting telescope at Mount Wilson Observatory, 100-inch Hooker ...
The center is sustained through charitable contributions, and the facility in which the center is located is provided through the generosity of the James W. Hubbell, Jr. family of Des Moines, Iowa. The center also serves as the focal point for THFHS, which is associated with the center and provides financial support, structure and membership.
Actor Dave Coulier has stage 3 non-Hodgkin lymphoma, he revealed in an interview with People, published on Wednesday, November 13. The Full House alum, 65, is currently undergoing treatment and ...
1924: Edwin Hubble: the discovery that the Milky Way is just one of many galaxies; 1925: Erwin Schrödinger: Schrödinger equation (Quantum mechanics) 1925: Cecilia Payne-Gaposchkin: Discovery of the composition of the Sun and that hydrogen is the most abundant element in the Universe; 1927: Werner Heisenberg: Uncertainty principle (Quantum ...