The Sun is not only our closest stellar neighbor, it’s also the star we understand the most. As we’ve observed it over the centuries, we’ve learned that the Sun is not an immortal constant. It goes through active and quiet cycles, it has…

The Sun is not only our closest stellar neighbor, it’s also the star we understand the most. As we’ve observed it over the centuries, we’ve learned that the Sun is not an immortal constant. It goes through active and quiet cycles, it has…