Space-time waves in dead star pulses

摘要

Take the pulse of the universe, and its invisible wrinkles become visible. The first direct evidence of Einstein's gravitational waves, may already exist in records of light pulses from rapidly spinning dead stars. Crucially, we may uncover those waves as early as 2013. New research suggests that we've underestimated the rate at which black holes merge, and how that changes the light from pulsars.