BEIJING: Scientists have detected cosmic ray energy readings that could bring them closer to proving the existence of dark matter, a mysterious substance believed to comprise a quarter of our universe, a study said Thursday. Likely made up of unknown sub-atomic material, dark matter is invisible to telescopes and can be perceived only through its gravitational pull on other objects in the universe. Beijing?s first astronomical satellite launched two years ago detected 1.5 million cosmic ray electrons and protons, the study said, and unprecedented measurements found curiously low-energy rays. The team of researchers from China, Switzerland and Italy, who published their first results in the journal Nature, said the data may cast light on ?the annihilation or decay of particle dark matter?.
12-01-2017, 02:50 PM
Chinese satellite closes in on dark matter mystery
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