Latest Sterile neutrino Stories

Perseus Cluster
2014-06-25 04:35:24

redOrbit Staff & Wire Reports - Your Universe Online Using the ESA’s XMM-Newton and NASA’s Chandra X-ray Observatory, astronomers have located a mysterious X-ray signal that could be produced by sterile neutrinos – particles that are a potential candidate for the abundant and essentially invisible substance known as dark matter. [ What Is Dark Matter?: Podcast Interview With Dr. Matthew Walker ] Thanks to the two high-powered observatories, Dr. Esra Bulbul of the...

Experiment Looks For Dark Matter Particle
2013-10-29 08:16:46

John P. Millis, PhD for redOrbit.com - Your Universe Online As we peer into the darkness of space we find stars, planets, nebulae, and gas clouds. These objects are all made of normal matter – protons, neutrons, electrons, and other elementary particles. But it is the matter that we don’t see that has confounded astronomers for decades. An estimated 80 percent of the stuff that makes up the Universe does not interact electromagnetically. This aptly named dark matter is...

2013-07-19 11:53:07

GERDA sets new limits on extremely rare decay Neutrinos are the most elusive particles having extremely weak interactions with all other particles. They have rather unusual properties and are even expected to be identical with their own antiparticles. So far this property is, however, not experimentally verified even though many studies of neutrinos over the last 60 years have already boosted our understanding of elementary particle physics. Now scientists of the GERDA collaboration...

Dark Matter Not Actually Dark
2013-06-11 09:51:15

John P. Millis, PhD for redOrbit.com — Your Universe Online For more than 80 years physicists and astronomers have been searching for an elusive form of matter that appears to be responsible for most of the mass in the Universe. While the presence of this dark matter can be measured by the gravitational influence of the particles, directly “seeing” the mass has proven troublesome. The working theory for decades has been that the candidate particle should be...

2011-03-16 09:06:47

By David Salisbury, Vanderbilt University If the latest theory of Tom Weiler and Chui Man Ho is right, the Large Hadron Collider "“ the world's largest atom smasher that started regular operation last year "“ could be the first machine capable of causing matter to travel backwards in time. "Our theory is a long shot," admitted Weiler, who is a physics professor at Vanderbilt University, "but it doesn't violate any laws of physics or experimental constraints." One of the major...

2010-11-04 17:47:45

The results of a high-profile Fermilab physics experiment involving a University of Michigan professor appear to confirm strange 20-year-old findings that poke holes in the standard model, suggesting the existence of a new elementary particle: a fourth flavor of neutrino. The new results go further to describe a violation of a fundamental symmetry of the universe asserting that particles of antimatter behave in the same way as their matter counterparts. Neutrinos are neutral elementary...

2010-07-12 13:43:05

Neutrinos are likely half as massive as previous estimates suggested Physicists have long known that neutrinos are among the lightest and most evasive fundamental particles. Now a survey of the galaxies is helping to narrow down the neutrino mass even further. It seems that neutrinos are at best half as massive as previously estimated, according to an analysis appearing today in the journal Physical Review Letters. The lower neutrino mass estimate is the result of a 3-dimensional survey of...

2006-03-15 10:07:24

Max Planck -- Dark matter could light up the first stars in the universe if the dark matter is made up of sterile neutrinos. According to a paper by Peter Biermann, (Max-Planck-Institut fr Radioastronomie, Bonn) and Alexander Kusenko (University of California at Los Angeles), recently published in "Physical Review Letters", sterile neutrino decays speed up the formation of molecular hydrogen and light up the first stars as early as 20-100 million years after the Big Bang. The light from...

Word of the Day
  • The offense of persistently instigating lawsuits, typically groundless ones.
  • An unlawful breach of duty on the part of a ship's master or crew resulting in injury to the ship's owner.
  • Sale or purchase of positions in church or state.
This word ultimately comes from the Old French word 'barater,' to cheat.