News tagged with cosmological theory

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 ...

Physics / General Physics

created Mar 05, 2012 | popularity 4.5 / 5 (41) | comments 152 | with audio podcast feature

Leading the quest to crack cosmological mysteries

Sometimes a scientist can only laugh in the face of a seemingly insurmountable challenge.

Physics / General Physics

created Feb 13, 2012 | popularity 3.6 / 5 (14) | comments 125 | with audio podcast

Why Einstein was wrong about being wrong

If you want to get your mind around the research that won three astronomers the Nobel Prize in physics last week, it helps to think of the universe as a lump of dough - raisin-bread dough, to be precise - mixed, kneaded and ...

Physics / General Physics

created Oct 14, 2011 | popularity 4.4 / 5 (16) | comments 113

Light from galaxy clusters confirms theory of relativity

All observations in astronomy are based on light emitted from stars and galaxies and, according to the general theory of relativity, the light will be affected by gravity. At the same time all interpretations ...

Space & Earth / Astronomy

created Sep 28, 2011 | popularity 3.6 / 5 (14) | comments 29 | with audio podcast

Far-future astronomers could still deduce the Big Bang

(PhysOrg.com) -- One trillion years from now, an alien astronomer in our galaxy will have a difficult time figuring out how the universe began. They won't have the evidence that we enjoy today.

Space & Earth / Astronomy

created Apr 14, 2011 | popularity 4.2 / 5 (6) | comments 17 | with audio podcast

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. ...

Physics / General Physics

created Feb 23, 2011 | popularity 4.7 / 5 (41) | comments 96 | with audio podcast

In Brief: Study backs Einstein notion on expanding universe

Scientists have found new evidence that an idea Albert Einstein regretted ever having may be key to solving a big mystery: why the universe is expanding at an ever-faster clip.

Physics / General Physics

created Nov 24, 2010 | popularity 2.7 / 5 (7) | comments 1

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.

Physics / General Physics

created Sep 01, 2010 | popularity 4.4 / 5 (61) | comments 54 | with audio podcast

Einstein's theory fights off challengers (w/ Video)

(PhysOrg.com) -- Two new and independent studies have put Einstein's General Theory of Relativity to the test like never before. These results, made using NASA's Chandra X-ray Observatory, show Einstein's ...

Physics / General Physics

created Apr 14, 2010 | popularity 4.7 / 5 (18) | comments 113 | with audio podcast

Einstein's theory of relativity on display for first time

In a darkened room in Jerusalem, the world was given a rare glimpse Sunday into the mind of Albert Einstein as he worked to unlock the secrets of the universe.

Physics / General Physics

created Mar 07, 2010 | popularity 4.3 / 5 (10) | comments 15

Shedding Light on the Cosmic Skeleton

(PhysOrg.com) -- Astronomers have tracked down a gigantic, previously unknown assembly of galaxies located almost seven billion light-years away from us. The discovery, made possible by combining two of the ...

Space & Earth / Astronomy

created Nov 03, 2009 | popularity 4.8 / 5 (23) | comments 7

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 ...

Physics / General Physics

created Apr 20, 2009 | popularity 3.4 / 5 (81) | comments 50 feature