Assertion: cosmic ray's energy | /r/CapableOf | reach 1020–1021 ev
Facets:
Source sentences:
text: Most particles of primary cosmic radiation have an energy greater than 109 electron volts (eV), or 1 giga electron volt (GeV), and the energy of some particles reaches 1020–1021 eV, and perhaps even higher.
text: Most particles of primary cosmic radiation have an energy greater than 109 electron volts (eV), or 1 giga electron volt (GeV), and the energy of some particles reaches 1020–1021 eV, and perhaps even higher.