A weather balloon in Antarctica spotted what looked like a high-energy particle from outer space striking the ice back in 2006. Except the particle didn’t hit from above — it somehow travelled all the way through the planet. Eight years later, it happened again.
Tagged With new physics
Scientists haven't conclusively spotted any new particles since the Higgs boson, and that has some people worried - there are a ton of other physics puzzles remaining, many of which would require the presence of a new particle to resolve.
But recently, there have been some tantalising clues of new physics, perhaps a new particle, that many scientists are excited about.