Sanford Underground Research Facility searches for dark matter.

The former Homestake gold mine in Lead is where the Sanford Lab is situated.

They are attempting to provide answers to some of what they refer to as "the most difficult questions in the cosmos."

Dark matter cannot be found by detecting electromagnetic radiation since it is made up of particles that do not absorb, reflect, or emit light, according to NASA

Image Credit:scitechdaily

Sensitive physics experiments can be carried out at this location because the former gold mine acts as a natural shield, absorbing the majority of the radiation.

This week, researchers announced the beginning of experiments at the United States' deepest laboratory

These studies are intended to provide light on some of the universe's most fundamental questions.

The Sanford Underground Research Facility's research facilities are intended, in part, to shed light on the characteristics of so-called "dark matter," 

a substance that is invisible to the naked eye but which equations suggest accounts for a significant portion of all the matter in the universe.

In Lead, South Dakota's historic Homestake Gold Mine, the facility lies a mile underground.

The facility's depth was essential for filtering out cosmic rays and the sun's electromagnetic background disturbance.

Authorities claimed on Thursday that the facility has been conducting tests for two months, despite the fact that the equipment has not yet discovered any indication of the elusive dark matter.

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