@CNN: For the first time, scientists have been able to trace the origins of a ghostly subatomic particle that traveled 3.7 billion light-years to Earth https://t.co/2n4OpbuIur https://t.co/oxSJfVp3pe

@CNN: For the first time, scientists have been able to trace the origins of a ghostly subatomic particle that traveled 3.7 billion light-years to Earth https://t.co/2n4OpbuIur https://t.co/oxSJfVp3pe