Physicists are building detectors so sensitive that they may succeed in unraveling one of the greatest mysteries in modern physics: the true nature of dark matter.

Scientists with NASA are launching enormous balloons, the size of a football stadium, from the Antarctic ice. They're carrying experiments on dark matter and other mysteries. Our next story takes us ...

Dark matter is claimed to make up over 80% of all matter in the universe, but scientists have never seen it. We only assume it exists because, without it, the behavior of stars, planets and galaxies ...

"If you think about it like a radio, the search for dark matter is like tuning the dial to search for one particular radio station. Our method is like doing a scan of 100,000 radio stations." When you ...

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