Astrophysicists describe what galaxy-wide gravitational waves could mean for our understanding of black holes and the history of the cosmos. Astrophysicists describe what galaxy-wide gravitational waves could mean for our understanding of black holes and the history of the cosmos.
Using beacon stars called pulsars, a decades-long effort has found space-time ripples that are light-years-wide. Using beacon stars called pulsars, a decades-long effort has found space-time ripples that are light-years-wide.