Imagine a super-advanced alien civilization that needs insane amounts of energy way beyond our puny solar panels and wind turbines to power their mega-cities, AI overlords, or whatever interstellar ...

Cosmic rays traveling through space may provide enough energy to sustain life even in incredibly cold and dark environments, a new study suggests. The staggeringly energetic neutrino likely came from ...

Cosmic rays seen at Earth show a wide range of particle energies, from 10 7 electron-volts (eV) to more than 10 20 eV, the latter being about the same as the kinetic energy of a 450 gram football ...