WASHINGTON, June 16 (Reuters) - The universe has two kinds of matter. There is invisible dark matter, known only because of its gravitational effects on a grand scale. And there is ordinary matter such as gas, dust, stars, planets and earthly things like cookie dough and canoes.
Scientists estimate that ordinary matter makes up only about 15% of all matter, but have long struggled to document where all of it is located, with about half unaccounted for.
With the help of powerful bursts of radio waves emanating from 69 locations in the cosmos, researchers now have found the "missing" matter.
Scientists estimate that ordinary matter makes up only about 15% of all matter, but have long struggled to document where all of it is located, with about half unaccounted for.
With the help of powerful bursts of radio waves emanating from 69 locations in the cosmos, researchers now have found the "missing" matter.