The very early universe, which is still poorly understood, was the split second in which the universe was so hot that particles had energies higher than those currently accessible in particle accelerators on Earth.
O universo moi cedo, aínda que é pouco comprendido, era a fracción de segundo en que o Universo era tan quente que as partículas tiñan enerxías superiores aos actualmente accesible en aceleradores de partículas na Terra.