Earth is covered in water—but scientists still debate how it got here in the first place. This video explores the mysterious origins of Earth’s oceans, from exploding stars and ancient meteorites to ...

Scientists trying to work out whether a star exploded and the resulting debris crashed into Earth 10 million years ago may be one step closer to solving the mystery. They discovered an unusual amount ...

Earth may owe some of its properties to a nearby star that blew up just as the solar system was forming. This pattern, which saw a supernova bubble envelop the sun and shower it with cosmic rays, may ...