Large Hadron Collider Could Generate Dark Matter: related news

Large Hadron Collider Could Generate Dark Matter

One of the biggest questions that occupy particle physicists and cosmologists alike is: what is dark matter? We know that a tiny fraction of the mass of the universe is the visible stuff we can see, but 23% of the Universe is made from stuff that we cannot see. The remaining mass is held in something called dark energy. But going back to the dark matter question, cosmologists believe their observations indicate the presence of dark matter, and particle physicists believe the bulk of this matter could be held in quantum particles. This trail leads to the Large Hadron Collider (LHC) where the very small meets the very big, hopefully explaining what particles could be generated after harnessing the huge energies possible with the LHC…

New Study Finds Clumps and Streams of Dark Matter in the Milky Way

One of the leading theories for how the universe evolved after the Big Bang is the Cold Dark Matter Theory (CDM). This theory proposes that chilly dark matter moved slowly in the early universe, allowing matter to clump together to form the clusters of galaxies that we see, instead of matter being distributed evenly across the universe. Using the properties of the CDM theory, astronomers recently ran an intensive computer program using one of the world's most powerful supercomputers to simulate the halo of dark matter that envelopes our galaxy. The simulation revealed dense clumps and streams of the mysterious dark matter lurking within our Milky Way galaxy, including the region of our solar system.

Minimum Mass for Galaxies Provides Insight on Dark Matter

More news on dark matter this week: By analyzing light from dwarf galaxies that orbit the Milky Way, scientists believe they have discovered the minimum mass for galaxies in the universe – 10 million times the mass of the sun. This mass could be the smallest known “building block” of the mysterious, invisible substance called dark matter. Stars that form within these building blocks clump together and turn into galaxies. Scientists know very little about the microscopic properties of dark matter, even though it accounts for approximately five-sixths of all matter in the universe. “By knowing this minimum galaxy mass, we can better understand how dark matter behaves, which is essential to one day learning how our universe and life as we know it came to be,” said Louis Strigari, lead author of this study from the University of Cal

Study finds dark matter may be near Earth

Dark matter is one of the holy grails of astronomy since little is known about it though theories say it accounts for 90 per cent of the matter of the Universe. In this image, a purple haze shows dark matter flanking the "Bullet Cluster."

Simulation Predicts Clumps of Dark Matter Within Galaxies

A team of researchers has simulated the gravitational interaction of dark matter particles over the course of a hypothetical 13.7 billion years. They found that the particles tended to form clumps large enough to assist in the formation of galaxies. The results contradicted observations from previous, smaller studies, but they lent support to an unrelated simulation of how the Milky Way formed. UCSC's press release is also available. Quoting ScienceNews: "The clumps of dark matter in the simulation have densities that are remarkably similar to densities that a University of California, Irvine research group found when simulating the formation of the Milky Way and its satellite dwarf galaxies, says James Bullock, the astrophysicist who leads the UC-Irvine group and was not involved in the new study.

Large Hadron Collider Goes Live September 10th

Naznarreb writes "CERN announced today that the first attempt to circulate a beam through the Large Hadron Collider will be on September 10th, 2008. You can read the press release here. They also announced the event will be webcast live. According to the release, they're just planning to run a few tests laps, not smash any particles, so the world won't be ending quite yet." And despite that September 10th date, according to the BBC, "On 9 August, protons will be piped through LHC magnets for the first time."

Large Hadron Collider set to unveil a new world of particle physics

The massive ATLAS detector dwarfs a worker standing in front of it during installation at the Large Hadron Collider. UCSC physicists have been working on the ATLAS project since 1994. Image courtesy of CERN.

Large Hadron Collider set to unveil a new world of particle physics

SANTA CRUZ, CA--The field of particle physics is poised to enter unknown territory with the startup of a massive new accelerator--the Large Hadron Collider (LHC)--in Europe this summer. On September 10, LHC scientists will attempt to send the first beam of protons speeding around the accelerator.

Large Hadron Collider Rap Teaches Particle Physics in 4 Minutes

we can appreciate here at Popular Mechanics, it's geeks willing to embarrass themselves in the name of science communication. So hats off to Kate McAlpine and crew, who took to the tunnels under CERN to bring us the most entertaining explanation of physics we've seen since Schoolhouse Rock. Backup dancing aside, it's a completely respectable description of what scientists hope to learn when they first flip the switch on the Large Hadron Collider—a massive particle accelerator located near Geneva—sometime later this month. —Jennifer Bogo

Dark matter and normal matter 'divorce' in cosmic clash

Hot gas (shown in pink) in two merging galaxy clusters slowed down after impact, but their dark matter (blue) continued on unimpeded. Astronomers made this map of the clusters' matter distribution by studying how their mass gravitationally distorted light from background galaxies (Image: NASA/ESA/CXC/M Bradac/UCSB/S Allen/Stanford)

CERN to Start Up the Large Hadron Collider. Now Here's How It Plans to Stop It

13 August 2008—This week, the Large Hadron Collider (LHC)—the world’s most powerful particle accelerator—began test runs, sending a stream of protons around a quarter of its 27-kilometer circumference. The European Organization for Nuclear Research (known as CERN), in Geneva, Switzerland, where the LHC is housed, says the tests are part of the preparations for the machine’s projected 10 September start-up date.

Awesome Pics of CERN's Large Hadron Collider

mactard submitted a collection of insanely beautiful pictures of the Large Hadron Collider. I've always had a warm place for amazing photgraphs, and these really don't disappoint. Science really is beautiful sometimes.

CERN announces start-up date for Large Hadron Collider

CERN1 has today announced that the first attempt to circulate a beam in the Large Hadron Collider (LHC) will be made on 10 September. This news comes as the cool down phase of commissioning CERN’s new particle accelerator reaches a successful conclusion. Television coverage of the start-up will be made available through Eurovision.

University of Copenhagen deploys Force10 Networks in tier one termination point for CERN's Large Hadron Collider

10 June 2008 The Danish Centre for Scientific Computing at the University of Copenhagen (DCSC/KU) has deployed Force10 Networks' TeraScale E-Series family of switch/routers and the S-Series family of access switches at the foundation of Denmark's most powerful research supercomputer. Supporting more than 400 compute nodes with nearly 400 Terabytes of raw storage, the new supercomputer is part of the Nordic DataGrid Facility (NDGF) tier one termination point for CERN's Large Hadron Collider.

Space Observatory May Have Found Dark Matter

KentuckyFC writes to mention that new data from the orbiting observatory PAMELA may shed some additional light on the question of dark matter. Still only a preliminary announcement, the new findings apparently support the "Minimal Dark Matter" model where a particle called a "Wino" is responsible.

Dark Matter is Missing From Cosmic Voids

Cosmic voids really are devoid of matter. Astronomers have found that even the pervasive 'dark matter' which accounts for about 80% of the mass of the universe is not present in these voids, which are areas of vast emptiness in space that can be tens of millions of light-years across. "Astronomers have wondered for a quarter-century whether these voids were 'too big' or 'too empty' to be explained by gravity alone," said University of Chicago researcher Jeremy Tinker, who led the new study using data from the Sloan Digital Sky Survey II (SDSS-II). "Our analysis shows that the voids in these surveys are exactly as big and as empty as predicted by the 'standard' theory of the universe."

One of the Coolest Places In the Universe

phantomflanflinger writes "The Cern Laboratory, home of the Large Hadron Collider, is fast becoming one of the coolest places in the Universe. According to news.bbc.co.uk, the Large Hadron Collider is entering the final stages of being lowered to a temperature of 1.9 Kelvin (-271C; -456F) — colder than deep space. The LHC aims to re-create the conditions just after the Big Bang and continue the search for the Higgs boson."

CERN announces start-up date for Large Hadron Collider

The last of 1746 superconducting magnets is lowered into the LHC tunnel via a specially constructed pit at 12:00 on 26 April. This 15-m long dipole magnet is one of 1232 dipoles positioned around the 27-km circumference of the collider. Dipole magnet ...

Study finds dark matter may be near Earth

U.S. and Swiss researchers say computer simulations suggest dark matter exists within the Milky Way galaxy and near Earth's solar system.

Colliding galaxies shed light on dark matter

WASHINGTON (Reuters) - Astronomers have captured images of a powerful collision of galaxy clusters and say it may shed light on the behavior of dark matter.

Colliding galaxies shed light on dark matter

WASHINGTON (Reuters) - Astronomers have captured images of a powerful collision of galaxy clusters and say it may shed light on the behavior of dark matter.

Some solar flares may be caused by dark matter

London, Aug 24: New calculations have suggested that some solar flares may be caused by dark matter particles called axions spewing out from the centre of the Sun.

A Clash of Clusters Provides New Clue to Dark Matter

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Large Hadron Collider has final successful tests

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If The Large Hadron Collider Produced A Microscopic Black Hole, What Would Happen?

Particle colliders creating black holes that could devour the Earth. Sounds like a great Hollywood script. But, according to UC Santa Barbara Physics Professor Steve Giddings, it's pure fiction.

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