A long-standing challenge in physics has been finding evidence for dark matter, the stuff presumed to make up a substantial chunk of the mass of the universe. Its existence seems to be responsible for the structure of the universe and the formation and evolution of galaxies. But physicists have yet to observe this mysterious material.
Results reported today by a China-led space science mission provide a tantalizing hint—but not firm evidence—for dark matter.
Source: China’s dark matter space probe detects tantalizing signal | Science | AAAS