If several gravitational -
wave detectors across the world detect signals from the same neutron - star merger, together they will be able to provide an estimate of the absolute loudness of the signal, which will reveal how far away the merger occurred.
Not exact matches
The 0.007 - second delay between the signals in Louisiana and Washington is the right timing for a light - speed
wave zipping
across both
detectors.
LIGO has since made two additional detections of gravitational
waves and the discovery has led to the development and establishment of global collaborations on next generation underground, space - and land - based
detectors across the globe.