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21.
Viewpoint

Bringing the Sun Down to Earth

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David Alexander, Physics 5, 90 (2012) – Published August 13, 2012
A laboratory analog of solar plasma offers a new tool in the search for the origin of coronal heating.
22.
Synopsis

Cosmic Drift

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Published August 9, 2012
Changes in the diffusion constant of cosmic rays due to self-induced turbulence may explain unexpected features in the cosmic-ray spectrum.
23.
Viewpoint

Extreme X Rays Probe Extreme Matter

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Donald Umstadter, Physics 5, 88 (2012) – Published August 6, 2012
Experimental measurements with an x-ray laser test models of how ions behave in plasmas, like those found in stars and laser fusion research.
24.
Viewpoint

Cosmic Microwave Background Carries Imprint of Moving Galaxies

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Gilbert P. Holder, Physics 5, 81 (2012) – Published July 23, 2012
Observations of the way light scatters from large astrophysical bodies provides independent confirmation of the standard model of cosmology.
25.
Focus

Black Holes May Produce Lithium

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Physics 5, 77 (2012) – Published July 13, 2012
Theorists predict that the matter surrounding some black holes may be hot enough for nuclear fusion, which could generate lithium and deepen the mysteries surrounding lithium in the universe.
26.
Synopsis

Turning from Nuclei to Electrons for Dark-Matter Detection

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Published July 12, 2012
A new analysis shows that it is possible to look for dark-matter particles with mass far below 1 giga-electron-volt by using atomic ionization.
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