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 ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

Stunning imagery from outer space shows the power of the Sun, with a massive solar flare and coronal mass ejection erupting from the giant star’s surface, but space experts say there is no need to ...