Aurora alert! The colossal solar storm could impact and trigger impressive northern lights.

Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, ...

Is a sun a star or a planet? Current definitions define a star as a body that generates its own energy. While humans have relied on the sun for hundreds of thousands of years, it's only in the last ...

The sun is the biggest object in the solar system; at about 865,000 miles (1.4 million kilometers) across, it's more than 100 times wider than Earth. Despite being enormous, our star is often called a ...

The color of the sun is actually white, though it may look yellow. If you were to get close enough to the sun, which you can't actually do, you'd be able to see its true color. The light rays from the ...