The Milky Way seems to be missing some of its matter. A study of a powerful flash of cosmic radio waves called a fast radio burst (FRB) has shown that the area in and around our home galaxy has less normal, or baryonic, matter than we would expect, as compared with the amount of dark matter.
The Deep Synoptic Array (DSA), a set of 110 radio dishes in California, of which 63 have been operating so far, was designed specifically …