Calling all stargazers and hopeless romantics! If you're hoping to catch a glimpse of the northern lights this Valentine's ...

A frigid storm will sweep across California, lowering snow levels and creating dangerous Sierra and mountain travel ...

While an aurora sighting is never guaranteed, a combination of ideal viewing conditions will coincide this March. Here's what to know—and where to go.

The space race between U.S. billionaires is heating up, with Elon Musk's SpaceX planning to build a lunar base and Jeff Bezos ...

The first solar eclipse of the year is almost here, but very few people will see it. Tuesday’s annular solar eclipse, known ...

French police arrested nine people in an investigation into a Louvre ticket fraud that may have cost the world's most visited ...

President Donald Trump says he's amassed a collection of campaign funds exceeding $1.5 billion, an unprecedented sum for a ...