China launched two satellites to find sources of gravitational waves

China has launched two satellites looking for their electromagnetic counterparts, which are emitted along with gravitational waves. These signals are quickly relayed to the ground and help narrow down the area of ​​the sky that scientists must seek to find the sources of gravitational waves.

These two 140-kilogram satellites form the high-energy electromagnetic gravitational wave all-sky monitor (GECAM), which at all times monitors the entire sky for signals from some of the most violent events in the universe – collisions between a …