The Ancient Particle That May Explain Why Matter Exists

What if an overlooked particle played a crucial role in making our existence possible? A new cosmological theory suggests that an ancient, heavy neutrino may have briefly dominated the universe's energy after the Big Bang, influencing the delicate imbalance between matter and antimatter. Even more intriguing, its effects could have left detectable signatures in primordial gravitational waves, potentially offering scientists a new way to investigate the universe's earliest moments. This episode includes AI-generated content.