Each of the cosmic rays studied had energy in excess of 57 billion billion electron volts, about the energy of a nicely hit tennis ball. By comparison, the Large Hadron Collider at the European Organization for Nuclear Research, or CERN, near Geneva, will accelerate protons to a mere 7 trillion electron bolts [sic] when it turns on next summer.
“Such energies are so extreme that they could arise in only the most violent places in the universe,” the authors of the report wrote.
Okay, so a "nicely hit tennis ball" has 57 billion billion electron volts of energy in it, but the world's largest particle accelerator only produces 7 trillion electron volts? Apparently the energy found in cosmic rays can only originate from black holes or the tennis court -- "the most violent places in the universe."