Forgotten Particle May Explain Why Matter Survived the Big Bang, Scientists Propose

Researchers from the University of Southampton and the Indian Institute of Technology Kanpur have proposed a new theory suggesting that a long-overlooked 'decoupled' heavy neutrino may be the key to understanding why matter survived the Big Bang, allowing stars, planets, and life to exist. This mysterious particle is believed to have reshaped the early universe and could have left detectable gravitational wave signals.