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Chris Walker looks at some of the uses of a novel amorphous diamond material.

In this week's edition of Nature, a cohort of researchers report the latest findings from two of the major players in this search for gravitational waves - The LIGO Scientific Collaboration located in the US and the Virgo Collaboration in France and Italy. The paper reports the latest data from these two experiments collected 2005 - 2007, and discusses the implication of these results for the standard picture of cosmology.

Researchers in the US claim to have demonstrated the first small-scale device to perform all the functions required in large-scale ion-based quantum processing.

Physicists currently believe that most of the dark matter in the universe is made up of individual particles, and the challenge is to work out what kind of particles these are. New research, however, overturns this assumption and says that observational and experimental data are better explained if dark matter exists as composite particles - atoms of dark protons and dark electrons that are acted on by the dark-matter equivalent of the electromagnetic force.