<ul><li>Using data from the now-destroyed Arecibo radio telescope, scientists from the Search for Extraterrestrial Intelligence (SETI) Institute have unlocked the secrets of signals from "cosmic lighthouses" powered by dead stars.</li><li>The team studied how the signals from pulsars are distorted as they travel through space and found patterns in the signals, showing how they are impacted by the interstellar medium.</li><li>The research revealed that the bandwidths of pulsar signals were wider than current models of the universe suggest, indicating the need to revise models of the interstellar medium.</li><li>Understanding pulsar signals is crucial for detecting gravitational waves, and the findings can enhance projects like NANOGrav's detection of the gravitational wave background.</li></ul>

Destroyed observatory helped SETI unlock the secrets of 'cosmic lighthouses' powered by dead stars

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