The IceCube facility may have caught evidence of seven elusive ghosts. There is nothing supernatural about them, however. They're "ghost particles," or neutrinos, that come from powerful cosmic sources.

IceCube might've caught 7 exotic 'ghost particles' as they pierced through Earth

Source: space
Source Link: https://www.space.com/icecube-neutrinos-south-pole-cosmic-messengers