Askaryan Radio Array confirms cosmic ray radio pulses in Antarctic ice

12 articles · Updated · Boing Boing · Apr 29

Researchers identified 13 radio signals from 2019 data, matching Askaryan radiation characteristics at 5.1 sigma confidence, using antennas buried 150–200 meters beneath the South Pole.
This marks the first confirmation of Askaryan's 1962 prediction in ice, distinguishing cosmic rays from neutrinos and validating the detection method.
A full multi-year data release from all five ARA stations is expected soon, potentially including up to seven candidate neutrino events, further advancing high-energy particle astrophysics.

With two different detectors at the South Pole, could they one day observe the same cosmic event together?

How do researchers filter faint cosmic whispers from the radio noise of a bustling Antarctic station?

Beyond ice, what other extreme Earth environments are being transformed into massive cosmic detectors?

If cosmic rays and neutrinos create similar signals, how will scientists definitively identify the first neutrino?

How will artificial intelligence accelerate the search for these elusive particles in mountains of data?

A 64-year-old Soviet theory is now proven. What major physics prediction could be the next to fall?