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21.

Viewpoint

Scaling up the search for dark matter

Karl van Bibber, Physics 2, 2 (2009) – Published January 5, 2009

New upper limits on the spin-independent interaction of WIMPs and nucleons marks the latest volley in the worldwide effort to detect and identify particle dark matter.

22.

Focus

A Constant Worthy of the Name

Phys. Rev. Focus 13, 13 (2004) – Published March 31, 2004

New astronomical observations contradict the claim that fundamental constants were different in the early universe.

23.

Focus

The Field that Ate the Milky Way

Phys. Rev. Focus 12, 24 (2003) – Published December 19, 2003

Computer simulations support the controversial theory that the magnetic fields enveloping galaxies are as old as the Universe.

24.

Focus

A Galactic Condensate

Phys. Rev. Focus 6, 5 (2000) – Published August 9, 2000

A new theory proposes that dark matter consists of particles so light that their quantum, wavelike nature dominates.

25.

Focus

Einstein’s “Mistake” is Revived

Phys. Rev. Focus 4, 6 (1999) – Published July 30, 1999

Cosmologists have used recent data to constrain the type of ‘dark energy’ that may fill all of space.

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