@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/uUQgoXxafM https://t.co/c5eV1mBFfG

@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/uUQgoXxafM https://t.co/c5eV1mBFfG