Grab your telescope and join us on a sightseeing tour, before the moon returns to spoil the fun!

The planets are visible throughout February, "but they’ll be lined up best toward the end of the month,” NASA says.

Look west just after sunset from this weekend for a chance to see some of six planets, though the best views will be had later this month.

Six planets—including Venus, Jupiter, and Mercury—will line up in the sky. Here’s the best time to watch and where to find clear views.

Before skywatchers begin their countdown for the brief planetary alignment expected next month, some astronomical debunking has proved there may be less of a sky show after all. In the early morning ...

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...