Physicists are increasingly entertaining a radical possibility: our familiar universe of three dimensions of space and one of ...

Dark matter could be the result of fermions pushed into a warped fifth dimension. This theory builds on an idea first stated in 1999, but is unique in its findings. Dark matter makes up 75 percent of ...

Dark matter, a mysterious substance making up roughly 75 percent of all matter in the universe, has long eluded direct observation. Despite its invisibility, dark matter plays a crucial role in ...

A subatomic particle called the muon is wobbling far more than leading physics models can explain. Its unusual behavior could be evidence of a fifth force of nature or a new dimension. Scientists ...