It's a pretty long read, but very fascinating.
Bizarre Particles Keep Flying Out of Antarctica's Ice, and They Might Shatter Modern Physics
There's something mysterious coming up from the frozen ground in Antarctica, and it could break physics as we know it.
Physicists don't know what it is exactly. But they do know it's some sort of cosmic ray — a high-energy particle that's blasted its way through space, into the Earth, and back out again. But the particles physicists know about — the collection of particles that make up what scientists call
the Standard Model (SM) of particle physics — shouldn't be able to do that. Sure, there are
low-energy neutrinos that can pierce through miles upon miles of rock unaffected. But high-energy neutrinos, as well as other high-energy particles, have "large cross-sections." That means that they'll almost always crash into something soon after zipping into the Earth and never make it out the other side.
And yet, since
March 2016, researchers have been puzzling over
two events in Antarctica where cosmic rays did burst out from the Earth and were detected by NASA's Antarctic Impulsive Transient Antenna (ANITA) — a balloon-borne antenna drifting over the southern continent.
Here is a link to the Paper in PDF form that was just published on this.
The ANITA Anomalous Events as Signatures of a Beyond Standard Model Particle, and Supporting Observations from IceCube