Antarctic Detector Picks Up Anomalous Signal: Unknown Particles from Deep Space?

The ANITA detector in Antarctica has detected anomalous cosmic ray signals that defy explanation by current particle physics models. These signals appear to originate from below, traveling upward in a direction opposite to what's expected, sparking intense scientific interest. Researchers have ruled out other known particles, suggesting the possibility of dark matter or a gap in our understanding of radio wave propagation in ice. A Penn State team is building a more powerful detector, PUEO, hoping to solve this cosmic mystery and further explore the enigma of cosmic rays.