Has The 5th Force of Nature Been Found?

                The possible discovery of a previously unknown subatomic particle may indicate that a fifth fundamental force of nature exists, a revolutionary finding that could change our understanding of dark matter and the universe. We’ve known of four fundamental forces: gravitation, electromagnetism and strong and weak nuclear forces.  The researchers came upon a 2015 study by physicists Hungarian Academy of Sciences who were searching for “dark photons”, particles that would signify unseen dark matter, which physicists say makes up 85% of universe’s mass. They were not able to claim that it was a new force. Instead of being a dark photon, the particle may be a “protophobic X boson”. While normal electric force acts on electrons and protons, this boson interacts only with electrons and neutrons – and at an extremely limited range.