Focus at Four: Ghost particle discovery could help answer questions of origin

BRYAN, Tex. (KBTX) - 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.

Scientists said the discovery brings what could be a new era of space research. That's because these ghost particles help us observe the universe in an new way.

Louis Strigari from the Texas A&M University Department of Physics & Astronomy joined First News at Four to discuss the discovery and what it means for residents of the universe.