The discovery boosts the chances of finding extraterrestrial life.

A special planetary alignment is occurring in late February. Five planets are visible to the naked eye, with two more faintly showing. Here's how, where, and when to see the planets line up. The ...

For the last month and change, you might've seen the headlines about the planetary alignment, or a planetary parade, going on in our solar system. And that's true. In January 2025, Venus, Mars, ...

Scientists have painted the most detailed portrait yet of the planetary system orbiting Barnard's Star—the sun's closest ...

The curious minds at What If explore what would happen if all the planets of the solar system were in the habitable zone.

It was almost 100 years ago that Clyde W. Tombaugh discovered Pluto. That was the last planet found until 1992, when humans found another one. But this new planet wasn't in our solar system—it was ...