Some of the most valuable insights about dark energy evoke hints of its relationship with the universe’s fate. Will it stretch space to its breaking point and set the stage for the Big Rip scenario, ...

matter makes up less than 5 percent of the mass of the universe. The rest of the universe appears to be made of a mysterious, invisible substance called dark matter (25 percent) and a force that ...

W hat will it take to detect dark matter—the invisible, nigh-intangible substance that might make up five-sixths of all ...

One mile beneath a mountain in Italy, scientists at the Gran Sasso National Laboratory fill a particle detector with liquid xenon, hoping to observe evidence of dark matter ... in a 5-by-5 ...

But if a sufficient number of these primordial black holes ... have to be all the same,” she said. “There are five times more ...