Dark matter search turns up empty

(Phys.org) -- The most accurate study so far of the motions of stars in the Milky Way has found no evidence for dark matter in a large volume around the Sun. According to widely accepted theories, the solar neighbourhood was expected to be filled with dark matter, a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts. But a new study by a team of astronomers in Chile has found that these theories just do not fit the observational facts. This may mean that attempts to directly detect dark matter particles on Earth are unlikely to be successful.

Dark matter search turns up empty

New calculations suggest dearth of invisible substance in solar neighborhood

Fri 20 Apr 12 from ScienceNews

Nearby dark-matter-free zone poses cosmic conundrum

A new star survey suggests a large zone around our solar system contains no dark matter – contradicting otherwise successful predictions about the history of our universe

Fri 20 Apr 12 from Newscientist

Has Our Galaxy’s Dark Matter Gone Missing?

Our little corner of the Milky Way contains no observable concentration of dark matter, the mysterious stuff whose gravity binds galaxies together -- or at least one team of astronomers claims. ...

Fri 20 Apr 12 from Wired Science

Survey finds no hint of dark matter near Solar System

Result poses a cosmic dilemma but critics prescribe caution.

Thu 19 Apr 12 from Nature News

Has Dark Matter Gone Missing?

Our corner of the Milky Way is devoid of the stuff, one team of astronomers claims

Thu 19 Apr 12 from Science Now

Serious blow to dark matter theories? New study finds mysterious lack of dark matter in Sun's neighborhood

(Phys.org) -- The most accurate study so far of the motions of stars in the Milky Way has found no evidence for dark matter in a large volume around the Sun. According to widely accepted theories, ...

Wed 18 Apr 12 from Phys.org

So what DOES hold our universe together? Mysterious 'dark matter' predicted to

'Dark matter' is thought to make up around 83% of the universe by mass - and to 'hold together' galaxies - but a a scan of 400 stars near our Sun found no trace of it.

Mon 23 Apr 12 from Daily Mail

Nearby dark matter mysteriously missing

A new study has found no trace of the mysterious substance known as dark matter around the sun, adding a twist to current theories, researchers say.

Fri 20 Apr 12 from FOXNews

Dark Matter Is Missing in Sun's Neighborhood?

Based on the motions of nearby stars, the invisible substance isn't "where we needed it" to match current theories, a new study says.

Thu 19 Apr 12 from National Geographic

If Not Dark Matter, Then What?

Dark matter has been called into question by a new survey of stars. But physicists think the survey, and not dark matter itself, is flawed, because the alternatives to dark matter theory are ...

Thu 19 Apr 12 from SPACE.com

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