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Ghost particle could have traveled 11 billion light-years to reach Earth
Astronomers have detected a ghost particle that may have journeyed 11 billion light-years to reach Earth.
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Astronomers have detected a ghost particle that may have journeyed 11 billion light-years to reach Earth.
Scientists have traced a high-energy neutrino, or 'ghost particle,' to a distant starburst galaxy dubbed the 'Shadow Blaster.'