mother sun

Image Credit: NAOJ Billions of years ago, a huge star blasted open and spewed its guts into space. At that energetic moment, the so-called core-collapse supernova formed a debris cloud of brand-new atoms, forged in the heat of its blast. Time passed. The cloud contracted, attracted to itself by its own gravity. A star formed — our sun — surrounded by chunks of rock and gas that formed our planets and other orbiting bodies. Much later, we came along. That’s the basic story of our solar system’s birth. And, mostly from watching other supernovas and other star births out in … Read more