Science: A Mixed-Up Sun

Most of the underground activity in Lead, S. Dak., site of the famous Homestake mine, consists of digging for gold. But in recent years, a group of scientists have also been working a mile beneath the surface at Lead to capture elusive emanations from the sun called neutrinos. Traveling at the speed of light and thought to be capable of passing through trillions of miles of solid lead, the ghostlike neutrinos have no mass or electrical charge. They are produced during violent atomic collisions at the core of the sun, and thus are believed...

Want the full story?

Subscribe Now


Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!