{"id":831,"date":"2025-07-11T06:44:04","date_gmt":"2025-07-11T06:44:04","guid":{"rendered":"https:\/\/www.newsbeep.com\/us\/831\/"},"modified":"2025-07-11T06:44:04","modified_gmt":"2025-07-11T06:44:04","slug":"incomprehensible-these-signals-from-the-depths-of-antarctica-baffle-scientists","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us\/831\/","title":{"rendered":"Incomprehensible: These signals from the depths of Antarctica baffle scientists"},"content":{"rendered":"

For over a decade, the ANITA balloon experiment has picked up anomalous signals from beneath Antarctic ice\u2014signals that shouldn\u2019t exist if our physics is right. Scientists are still hunting for answers.<\/p>\n

Follow-Up Observations and Analyses<\/p>\n

Other major detectors, like the Pierre Auger Observatory in Argentina and IceCube in Antarctica, have searched but found no matching anomalous signals<\/a>. That suggests we\u2019re not looking at new particles\u2014just missing pieces in the puzzle.<\/p>\n

The Search for Neutrinos<\/p>\n

ANITA was built to spot ultrahigh-energy neutrinos by catching a flash of radio waves when they smash into Antarctic ice. These \u201cghostly\u201d particles could reveal the origins of cosmic rays, the most energetic stuff in the universe.<\/p>\n

An Anomaly in the Data<\/p>\n

Twice, ANITA saw up-going radio pulses at steep angles\u2014about 30 degrees below the horizon<\/a>\u2014where neutrinos can\u2019t survive traveling through the Earth. According to the Standard Model, no known particle should make it that far.<\/p>\n

\"\"<\/p>\n

Unusual radio signals were detected by the Antarctic Impulsive Transient Antenna (ANITA) experiment, a series of instruments on balloons above Antarctica designed to detect radio waves emitted by cosmic rays hitting the atmosphere. \u00a9 Stephanie Wissel, Penn State University<\/p>\n

The Future of Detection<\/p>\n

Now comes PUEO, launching over Antarctica soon. Ten times more sensitive than ANITA, it\u2019s designed to catch more of these weird events. \u201cWith PUEO, we\u2019ll finally know whether these signals are real or just quirks of our detectors,\u201d says coauthor Stephanie Wissel.<\/p>\n

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