After 15 years, pulsar timing yields evidence of cosmic background gravitational waves
The universe is humming with gravitational radiation—a very low-frequency rumble that rhythmically stretches and compresses spacetime and the matter embedded in it. That is the conclusion of several groups of researchers from around the world who simultaneously published a slew of journal articles in June describing more than 15 years of observations of millisecond pulsars …
After 15 years, pulsar timing yields evidence of cosmic background gravitational waves Read More »