Neutrinos Reach Record Speed, Faster than Light An international team of scientists says it has recorded subatomic particles known as neutrinos travelling faster than the speed of light. If their findings prove to be correct, the discovery would undermine a key part of Albert Einstein's theory of special relativity, which asserts that nothing in the universe can travel faster than light. If something actually can travel faster ...
Tachyons According to the theory of relativity, particles having nonzero rest mass can approach, but not reach, the speed of light, as their mass would become infinite at that speed. On the other hand, particles with zero rest mass, like photons, always travel at the speed of light. Theorists have argued that nothing in principle prohibits the existence of a third ...
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