Dark Matter Search Comes Up Empty… WIMPS?

July 24th, 2012 §

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The most sensitive search yet for the elusive particles that may make up dark matter has turned up nothing, putting stronger limits than ever on the ingredients of nature’s invisible stuff.

Dark matter is thought to make up about 83 percent of the matter in the universe, yet scientists can’t see or touch it. Astronomers detect its presence through its gravitational pull on the normal matter of galaxies and stars.

A leading idea suggests dark matter is made of particles called WIMPS (shorthand for “Weakly Interacting Massive Particles”) predicted by some theoretical physics models. These heavy particles would pervade the universe, flying through Earth and our bodies every moment, yet would almost never collide with other particles, so would be virtually undetectable.. Read More