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Ground-Based Instruments Could Detect Cosmic Wall Structures

Physics 6, 4 (2013) – Published January 11, 2013

Invisible sheetlike structures, which might pervade space and contribute to dark matter or dark energy, could be revealed as they pass by Earth-based detectors.

Focus

Landmarks: The Inflationary Universe

Phys. Rev. Focus 27, 12 (2011) – Published March 25, 2011

The idea of inflation–an exponential expansion of the universe in its first moments–was published in 1981, in a paper that imported new ideas from particle physics into theoretical cosmology.

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So Close, yet So Far

Phys. Rev. Focus 24, 15 (2009) – Published October 16, 2009

Relic neutrinos from the big bang have come from a region of the universe much nearer than the famous cosmic microwaves, even though they are older.

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Ginormous Neutrino

Phys. Rev. Focus 23, 17 (2009) – Published May 26, 2009

A single neutrino left over from the big bang may have a quantum wave (wave function) that stretches across the universe.

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Detecting Dark Dimensions

Phys. Rev. Focus 10, 21 (2002) – Published November 1, 2002

Dark matter arising from extra spatial dimensions could be detected with existing or future experiments.

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Nobel Focus: Neutrino and X-ray Vision

Phys. Rev. Focus 10, 18 (2002) – Published October 16, 2002

The 2002 Nobel Prize in Physics went to three experimentalists who opened the window on cosmic neutrinos and x rays.

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No WIMPs in Sight

Phys. Rev. Focus 5, 28 (2000) – Published June 20, 2000

WIMPs, particles that may solve the dark matter mystery, have still not been detected by the most sensitive search yet.

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Cosmic Ray Puzzle Solved?

Phys. Rev. Focus 5, 16 (2000) – Published April 13, 2000

New estimates of extragalactic magnetic fields may resolve the long-standing mystery regarding the sources of the highest energy cosmic rays.