News tagged with standard dark

Do the Milky Way's companions spell trouble for dark matter?

(Phys.org) -- Astronomers from the University of Bonn in Germany have discovered a vast structure of satellite galaxies and clusters of stars surrounding our Galaxy, stretching out across a million light years. ...

Space & Earth / Astronomy

created Apr 25, 2012 | popularity 4.2 / 5 (15) | comments 15 | with audio podcast

Closest Type Ia supernova in decades solves a cosmic mystery

Type Ia supernovae (SN Ia's) are the extraordinarily bright and remarkably similar "standard candles" astronomers use to measure cosmic growth, a technique that in 1998 led to the discovery of dark energy ...

Space & Earth / Astronomy

created Dec 14, 2011 | popularity 4.7 / 5 (32) | comments 177 | with audio podcast

Rare particle decay could mean new physics

(PhysOrg.com) -- An incredibly rare sub-atomic particle decay might not be quite as rare as previously predicted, say Cornell researchers. This discovery, culled from a vast data set at the Collider Detector at Fermilab (CDF), ...

Physics / General Physics

created Aug 23, 2011 | popularity 4.6 / 5 (22) | comments 27 | with audio podcast

Another universe tugging on ours? Maybe not, researchers say

(PhysOrg.com) -- A new study from the University at Buffalo contradicts the dark flow theory, showing that exploding stars in different parts of the universe do not appear to be moving in sync. Working with ...

Space & Earth / Astronomy

created Apr 14, 2011 | popularity 4.4 / 5 (14) | comments 9 | with audio podcast

Durham astronomers' doubts about the 'dark side'

(PhysOrg.com) -- New research by astronomers in the Physics Department at Durham University suggests that the conventional wisdom about the content of the Universe may be wrong. Graduate student Utane Sawangwit ...

Space & Earth / Astronomy

created Jun 14, 2010 | popularity 5 / 5 (53) | comments 72 | with audio podcast

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

New Data Suggests We Don’t Live in a Void, and Supports Dark Energy

(PhysOrg.com) -- An alternative proposal to dark energy in which the Earth sits near the center of a large void is undergoing scrutiny, and the results show that void models fit poorly with observed data. ...

Physics / General Physics

created Jan 28, 2009 | popularity 3.9 / 5 (37) | comments 75 feature