A Pulsar’s Twinkle Is Revealing the Hidden Texture of Space

A pulsar’s gentle twinkle is revealing how space quietly bends and delays the signals we receive from the cosmos. For about ten months, scientists led by the SETI Institute closely monitored the pulsar PSR J0332+5434 (also called B0329+54). Their goal was to see how its radio signal appears to “twinkle” as it travels through gas [...]