Sentences with phrase «for dark»

Despite tantalising early hints of a sighting, the most sensitive search yet for dark matter has come up empty.

Patience is a virtue in the hunt for dark matter.

One prize could be given for detecting the signature of the cosmic dawn, and another for the dark matter implications.

At Columbia University's Nevis Laboratories in Irvington, New York, Elena Aprile sits in front of a new liquid - xenon - filled detector that is key to her search for dark matter.

The idea complements a previous study that saw evidence for dark forces at work in the Bullet cluster.

A particle called the neutralino, for instance, is a type of WIMP that's a perfect candidate for dark matter in part because it doesn't interact with other particles much, and that would explain why nobody has yet detected it.

This powerful detector has the lowest background noise ever measured for any dark matter detector, and it is the largest - scale detector in operation.

Chalk up one more loss for physicists searching for dark matter.

Australia, known for its dark red Shirazes and Cabernet Sauvignons, could see an unsteady course in the value of its wines.

Driving slowly and systematically across the desert from sunup until sundown, he takes a quiet pleasure in scanning the landscape for dark objects that don't belong.

Such particles have also been proposed as a candidate for dark matter, the unknown substance that makes up most of the matter in the...

Looking for dark matter by searching for slight deviations in star motions is tricky in low - mass objects, says Manoj Kaplinghat of the University of California, Irvine.

In their paper, «Higgs Seesaw Mechanism as a Source for Dark Energy,» Krauss and Dent explore how a possible small coupling between the Higgs particle, and possible new particles likely to be associated with what is conventionally called the Grand Unified Scale — a scale perhaps 16 orders of magnitude smaller than the size of a proton, at which the three known non-gravitational forces in nature might converge into a single theory — could result in the existence of another background field in nature in addition to the Higgs field, which would contribute an energy density to empty space of precisely the correct scale to correspond to the observed energy density.

Unfortunately, that energy density is much bigger than the value for dark energy we measure using observations of galaxies moving away from each other.

Nothing in the known universe can account for the dark flow phenomenon.

The new result comes from an experiment called CRESST II, which uses a few dozen supercooled calcium tungstate crystals to hunt for dark matter from deep beneath the Gran Sasso mountain in Italy.

So the name of the game for dark matter experiments is shielding and discrimination.

Krauss and Dent found that it would be of the right order of magnitude to account for dark energy.

Sadly, the signal still differs from the detections by the other groups, so Collar is not announcing evidence for dark matter yet.

It does not explain the perplexing phenomenon of dark energy, which is accelerating the expansion of the universe, nor does it account for dark matter, the invisible material that outweighs visible galaxies five to one.

Such an episode may have left an imprint on the universe that persists to this day and might mean we're on the wrong track in our hunt for dark matter.

Even for dark matter's biggest fans, there's trouble brewing.

Most past searches for dark matter particles have focused on a different candidate particle, known as a weakly interacting massive particle, or WIMP.

A constellation of activities: The lineup for Dark Sky Festival 2014 includes the «Symphony Under the Stars» concert performed by the Edmonton Symphony Orchestra, a night - sky photography workshop, inflatable planetariums, and presentations from astronomy educators and authors — and don't forget the docent - led star parties, among other events.

Much more solid evidence for dark matter came from Vera Rubin, an observational astronomer, who in the late 1960s and early 1970s made detailed quantitative measurements of stars rotating in galaxies.

Impressive as CDMS is, though, noble gas experiments like XENON100 are currently the most sensitive detectors for dark matter.

The inferred mass is so slight, however, that neutrinos can not account for all dark matter.

The research teams plan more in - depth observations with space telescopes to strengthen the case for the dark births of black holes.

The measurement, while not breaking any records for accuracy, bolsters the case for dark energy.

There's enough good evidence for dark matter's effect on the universe that «it would be very premature to say this makes us abandon it,» he says.

PRA is caused by the degeneration of the photoreceptor cells, rods and cones, which are needed for dark and day light vision, respectively.

Research carried out two decades ago, however, showed that this expansion is accelerating, which suggests that Einstein's Constant may still have a part to play in accounting for dark energy.

A new study published in Physical Review Letters outlines how scientists could use gravitational wave experiments to test the existence of primordial black holes, gravity wells formed just moments after the Big Bang that some scientists have posited could be an explanation for dark matter.

WASHINGTON, D.C. — A team of physicists has used data from GPS satellites to hunt for dark matter, the mysterious stuff whose gravity appears to hold galaxies together.

Doubting Dark Matter It may turn out that the hunt for dark matter is a wild goose chase.

The possibilities being discussed for dark energy range from quantum vacuum energy to the influence of the unseen extra dimensions predicted by string theory.

«Study finds gender and skin - type bias in commercial artificial - intelligence systems: Examination of facial - analysis software shows error rate of 0.8 percent for light - skinned men, 34.7 percent for dark - skinned women.»

Supernova measurements are the key evidence for dark energy.

Experiments keep failing to find direct evidence for the dark stuff.

Fig Get Me Not is a clever lotion formulated with a unique BioBronze blend that works as a natural melanin enhancer to prepare your skin for dark color.

Cash and Anthony Harness hoped to take starshades into the realm of astronomy in a trial planned for Utah's Bonneville Salt Flats — famous for its dark skies and flat, open terrain ringed with mountains.

The bronze is oil rubbed for a dark, old world look.

It's also good news for theoretical cosmologists, who had struggled to reconcile WMAP's results with other conflicting estimates for the Dark Ages» end.

Although the common name «black widow spider» is most commonly used to refer to the three North American species best known for their dark coloration and red hourglass pattern, it is occasionally also applied to several other members of the Latrodectus (widow spider) genus in which there are 31 recognized species including the Australian red - back, brown widow spider (sometimes called the gray widow), and the red widow spider.

To determine whether a Weyl - inspired theory of the universe could explain away the need for dark matter, physicists will have to put it to the test and see if it produces a universe that looks like ours.

Previous calculations have indicated any effect would be too small to account for dark energy, and would produce an acceleration that changes in time in a way that disagrees with observations.

For a number of years, this lab in a cavern has hosted the UK's search for dark matter, along with super-sensitive radio - isotope testing equipment for environmental and climate studies, for example.

«Because of this, cosmologists have been flailing around trying to find some explanation for dark energy that sort of looks like a cosmological constant, but isn't a cosmological constant,» says Schmidt.

At some point, as the universe stretched out, the density of matter and energy dropped enough for dark energy to become dominant.

The simplest explanation for dark energy is that it is simply the «cost of having space»: that is, a volume of space has some intrinsic, fundamental energy.