NASA missions catch first light from a gravitational-wave event

An artist’s impression of gravitational waves generated by binary neutron stars. Credits: R. Hurt/Caltech-JPL › Larger image › Larger image”/> For the first time, NASA scientists have detected light tied to a gravitational-wave event, thanks to two merging neutron stars in the galaxy NGC 4993, located about 130 million light-years from Earth in the constellation Hydra.…