An electron antineutrino races to Earth from outer space at nearly the speed of light, carrying 6.3 petaelectronvolts (PeV) of energy. Deep in the ice sheet at the South Pole, this high-energy ...

On December 6, 2016, a high-energy particle called an electron antineutrino hurtled to Earth from outer space at close to the speed of light carrying 6.3 petaelectronvolts (PeV) of energy. Deep inside ...

Neutrinos may be the most mysterious particles in the universe. These ghostly entities zip around at nearly the speed of light and can fly through matter easily — a light-year's worth of lead would ...

Each second, more than 10 septillion (10 25) antineutrinos race away from Earth and into space. That’s 100 trillion times as many antineutrinos as stars in the galaxy. But who’s counting? Leave that ...

Antineutrino search: the NOvA detector in northern Minnesota. (Courtesy: Fermilab/Reidar Hahn) The best evidence yet that muon antineutrinos can change into electron antineutrinos has been found by ...

Results from a new study could explain a mismatch between predictions and recent measurements of ghostly particles streaming from nuclear reactors -- the so-called “reactor antineutrino anomaly” that ...

In a particle collider at CERN, a rarely-seen event is bringing us tantalizingly close to the brink of new physics. From years of running what is known as the NA62 experiment, particle physicist ...

The most remote particle detector on Earth has detected the most energetic antimatter particle ever: a single ultralight particle that smacked into the Antarctic ice with the (relatively) thundering ...

MADISON - On December 6, 2016, a high-energy particle hurtled to Earth from outer space at close to the speed of light. The particle, an electron antineutrino, smashed into an electron deep inside the ...

On December 6, 2016, a high-energy particle called an electron antineutrino hurtled to Earth from outer space at close to the speed of light carrying 6.3 petaelectronvolts (PeV) of energy. Deep inside ...

On December 6, 2016, a high-energy particle hurtled to Earth from outer space at close to the speed of light. It triggered the sensors of the IceCube Neutrino Observatory, a massive telescope buried ...