Huge underground search for mysterious dark matter begins

LEAD, S.D. (AP) — Scientists have begun a new search for mysterious dark matter in a former gold mine a mile underground.

Dark matter makes up most of the mass of the universe but scientists don’t know what it is.

The hope is that the experiment will block most of the radiation that is constantly flying through the universe, allowing only dark matter particles to slip through and light up a pool of liquid xenon held in a titanium tank.

Scientists announced Thursday that the five-year, $60 million experiment in South Dakota finally got underway two months ago after a delay caused by the COVID-19 pandemic.

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