News tagged with cosmology
Model describes universe with no big bang, no beginning, and no end
(PhysOrg.com) -- By suggesting that mass, time, and length can be converted into one another as the universe evolves, Wun-Yi Shu has proposed a new class of cosmological models that may fit observations of the universe better ...
Jul 29, 2010 |
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Scientists glimpse universe before the Big Bang
(PhysOrg.com) -- In general, asking what happened before the Big Bang is not really considered a science question. According to Big Bang theory, time did not even exist before this point roughly 13.7 billion ...
Nov 23, 2010 |
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Four reasons why the quantum vacuum may explain dark matter
(PhysOrg.com) -- Earlier this year, PhysOrg reported on a new idea that suggested that gravitational charges in the quantum vacuum could provide an alternative to dark matter. The idea rests on the hypothesis that particles ...
Nov 28, 2011 |
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Can R2 gravity explain dark matter?
(PhysOrg.com) -- "In many ways, the standard model of cosmology works very well," Jose Cembranos tells PhysOrg. "However, there are very basic features that we just do not know. We have dark energy and dark matter. They d ...
Apr 20, 2009 |
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New study suggests researchers can now test the 'theory of everything'
(PhysOrg.com) -- Researchers describe how to carry out the first experimental test of string theory in a paper published tomorrow in Physical Review Letters.
Sep 01, 2010 |
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Texas School Standards: Age of the Universe Erased
(PhysOrg.com) -- The fight over the new education and curriculum standards for the public schools in Texas has been long and publicized. Most of the publicity, though, focuses on the school board's focus on ...
Apr 07, 2009 |
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Professors urge one-way Martian colonization missions
For the chance to watch the sun rise over Olympus Mons, or maybe take a stroll across the vast plains of the Vastitas Borealis, would you sign on for a one-way flight to Mars?
Space & Earth / Space Exploration
Oct 19, 2010 |
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Study plunges standard Theory of Cosmology into Crisis
As modern cosmologists rely more and more on the ominous “dark matter” to explain otherwise inexplicable observations, much effort has gone into the detection of this mysterious substance in the last two decades, yet no direct ...
May 05, 2009 |
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What if there is only one universe?
(PhysOrg.com) -- Lee Smolin, author of the bestselling science book The Trouble with Physics and a founding member and research physicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada, ...
Jun 04, 2009 |
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Gas rich galaxies confirm prediction of modified gravity theory
(PhysOrg.com) -- Recent data for gas rich galaxies precisely match predictions of a modified theory of gravity know as MOND according to a new analysis by University of Maryland Astronomy Professor Stacy McGaugh. ...
Feb 23, 2011 |
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Why we've got the cosmological constant all wrong
(PhysOrg.com) -- Some scientists call the cosmological constant the "worst prediction of physics." And when today’s theories give an estimated value that is about 120 orders of magnitude larger than the ...
Mar 05, 2012 |
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Possible Fifth Force Would Make Direct Detection of Dark Matter Unlikely
(PhysOrg.com) -- No one knows exactly what a “fifth force” might be, but studies have shown that, if a long-range fifth force does exist, it could have surprising effects on the universe’s structure formation. ...
Mar 26, 2009 |
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New evidence for a preferred direction in spacetime challenges the cosmological principle
(PhysOrg.com) -- According to the cosmological principle, there is no special place or direction in the universe when viewed on the cosmic scale. The assumption enabled Copernicus to propose that Earth was ...
Sep 07, 2011 |
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Refined Hubble Constant narrows explanations for dark energy
Whatever dark energy is, explanations for it have less wiggle room following a Hubble Space Telescope observation that has refined the measurement of the universe's present expansion rate to a precision where ...
May 07, 2009 |
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A Superbright Supernova That’s the First of Its Kind
(PhysOrg.com) -- An extraordinarily bright, extraordinarily long-lasting supernova named SN 2007bi, snagged in a search by a robotic telescope, turns out to be the first example of the kind of stars that first ...
Dec 02, 2009 |
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Cosmology
Cosmology (from Greek κοσμολογία - κόσμος, kosmos, "universe"; and -λογία, -logia, "study") is study of the Universe in its totality, and by extension, humanity's place in it. Though the word cosmology is recent (first used in 1730 in Christian Wolff's Cosmologia Generalis), study of the Universe has a long history involving science, philosophy, esotericism, and religion.
For more information about Cosmology, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
