In 1920's Edwin Hubble, an American astronomer, showed that the recessional velocity of a galaxy increases with its distance from the earth, known as Hubble's law. Hubble's law is taken as the first observational basis for ...
General Physics
Nov 5, 2015
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The Hubble Space Telescope survived decades of delays, glitches and blunders to fulfill predictions that it would rewrite science textbooks. But as it moves into the final years of its life, scientists say some of its best ...
Space Exploration
Apr 29, 2015
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An international team led by the University of New South Wales has studied a distant star where gravity is more than 30,000 times greater than on Earth to test its controversial theory that one of the constants of Nature ...
General Physics
Jul 4, 2013
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Edwin Hubble's contributions to astronomy earned him the honor of having his name bestowed upon arguably the most famous space telescope (the Hubble Space Telescope, HST). Contributions that are often attributed to him include ...
Astronomy
Apr 5, 2013
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A team of astronomers including Carnegie's Ian Thompson have managed to improve the measurement of the distance to our nearest neighbor galaxy and, in the process, refine an astronomical calculation that helps measure the ...
Astronomy
Mar 6, 2013
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(Phys.org)—Alex Harvey, a physics professor at the City University of New York has uploaded a paper to the preprint server arXiv, in which he claims Albert Einstein and Erwin Schrödinger were writing letters back and forth ...
(Phys.org)—The North Star (Polaris) has played an important role in human history, yet knowledge of its fundamental parameters is unsatisfactory. That problem is attributable in large part to uncertainties tied to the star's ...
Astronomy
Nov 30, 2012
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(Phys.org)—Astronomers using NASA's Spitzer Space Telescope have announced the most precise measurement yet of the Hubble constant, or the rate at which our universe is stretching apart.
Astronomy
Oct 3, 2012
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A PhD student from The International Centre for Radio Astronomy Research (ICRAR) in Perth has produced one of the most accurate measurements ever made of how fast the Universe is expanding.
Astronomy
Jul 26, 2011
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(PhysOrg.com) -- Astronomers using NASA's Hubble Space Telescope have ruled out an alternate theory on the nature of dark energy after recalculating the expansion rate of the universe to unprecedented accuracy.
Astronomy
Mar 14, 2011
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