After Friday's spectacle, a "planet parade" of this size won't appear in the night sky for several years, experts say.

A visible line of planets has for weeks been the talk of astronomers and hobbyist stargazers who have sought to catch a sight of our solar system's worlds. Online chatter and a frenzy of media ...

For centuries, planets beyond our solar system—called exoplanets—existed only in theory and science fiction. It seemed nearly impossible to detect planets light-years away, since the ...

On Feb. 28, a stellar alignment of planets will illuminate the night sky for the last time in a decade Space Frontiers/Hulton Archive/Getty Calling all stargazers and astronomy enthusiasts ...

Venus is often referred to as Earth's sister planet. But if this were true, how can the two planets in some respects be so radically different? Well as it turns out, the answer may in fact lie in the ...

National Geographic, the iconic media organization known for documenting our world's wonders for over a century, has unveiled ...

Join the Planet Planners and use your geography decision-making skills to deal with challenges including volcanic eruptions, earthquakes and coastal erosion. Your aim is to play five rounds ...

That’s why National Geographic and Rolex have partnered to support trailblazing scientific research, expeditions, and solutions to increase our understanding of the threats facing the planet’s ...

It's unlikely you'll be able to walk outside and see a line of planets, but according to NASA ... visible in various geographic regions nationwide in January. If you can't wait for next month's ...