Scientists are trying to solve a decade-long mystery by determining the identity of anomalous signals detected from below ice in Antarctica.
The strange radio waves emerged during a search for another unusual phenomenon: high-energy cosmic particles known as neutrinos. Arriving at Earth from the far reaches of the cosmos, neutrinos are often called “ghostly” because they are extremely volatile, or vaporous, and can go through any kind of matter without changing.
Over the past decade, researchers have conducted multiple experiments using vast expanses of water and ice that are designed to search for neutrinos, which could shed light on mysterious cosmic rays, the most highly energetic particles in the universe. One of these projects was NASA’s Antarctic Impulsive Transient Antenna, or ANITA, experiment, which flew balloons carrying instruments above Antarctica between 2006 and 2016.
It was during this hunt that ANITA picked up anomalous radio waves that didn’t seem to be neutrinos.
Scientists have detected mysterious radio signals emerging from beneath Antarctica’s ice.
— AF Post (@AFpost) June 16, 2025
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