International Pulsar Timing Array

The International Pulsar Timing Array (IPTA) is a global scientific effort that uses precise measurements of pulsars—highly regular cosmic clocks—to detect gravitational waves, ripples in spacetime caused by massive accelerating objects like merging black holes. By timing the signals from a network of pulsars across different locations worldwide, IPTA searches for tiny disturbances in their signals indicative of gravitational waves passing through Earth. This collaborative approach enhances sensitivity and helps scientists explore the universe’s most energetic processes, advancing our understanding of fundamental physics and cosmic history.