Keeping dark matter detectors clean and accurate

A research team at South Dakota School of Mines & Technology has built an air purifier that has reduced the radon in the air to about 50 times lower than typical outdoor air. The team is helping to ensure success for one ...

Tracer galaxies probe the cosmic background

The universe, perhaps surprisingly, is not comprised of galaxies randomly distributed throughout space; that is, it is not very homogeneous. Instead, its galaxies are clustered into distinct structures, typically gigantic ...

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