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 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 ...
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CERN recreates cosmic ray collisions to reveal what happens when space particles hit Earth
Earth is constantly being bombarded by particles from space, but the most energetic arrivals are difficult to understand because scientists rarely observe them directly. Instead, researchers usually ...
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