100 Trillion Neutrinos Just Passed Through You

Did you know 100 trillion neutrinos fly through your body per second? 

Astrophysicist @ErikaHamden-o2q unpacks why neutrinos matter in astroparticle physics, and how they help us understand the universe beyond visible light. You don’t feel them flying through you because they’re electrically neutral, and interact so weakly with matter that they can pass through entire planets untouched. These ghost-like particles are born in stars, cosmic explosions, and even the Big Bang itself.