NASA’s ANITA balloon recorded two strange radio bursts rising from beneath Antarctic ice in 2006 and 2014, as if an ultrahigh-energy particle had crossed about 6,000 kilometers of Earth and after nearly two decades of investigation and a major neutrino test, physicists still cannot identify the cause, leaving unusual ice effects and unknown particles among the possibilities
Researchers with the Pierre Auger Collaboration have used 15 years of observations to investigate two mysterious radio signals recorded above Antarctica. According to a Penn State announcement, the analysis found no comparable upward-going particle showers in data from the vast Pierre Auger Observatory. That result sharply narrows one of the leading explanations for the decades-old…
