Moons are either gravitationally captured if they are within what's called a planet's Hill sphere radius, or they're formed along with a solar system. Objects exert a gravitational force of attraction ...

On Mercury, craters are named after “artists, musicians, painters and authors who have made outstanding or fundamental ...

It’s going to be a front-loaded, exciting year for all things celestial, lunar and planetary. Space lovers are going to take ...

The 2025 skywatching guide includes a rare sunrise solar eclipse, an occultation of Mars and three supermoons. Here are the ...

Directly above our heads, Jupiter will be signing bright. To the east, Mars will reach opposition in mid-January.

Saturn's intricate structure, interactions, and diverse components make it a fascinating 'mini solar system' within the ...

Unfortunate timing The first panel of this artist's concept depicts how Uranus's magnetosphere – its protective bubble – was ...

On January 15, throughout the night, observers will be able to see Mars reach its full phase, called opposition. This happens ...

Formerly the Large Synoptic Survey Telescope, the observatory was renamed in 2020 to honor Vera Rubin, who died at 88 in 2016 ...

January's sky brings a planet parade, Mars opposition, and the Quadrantid meteor shower. Enjoy Venus and Saturn's close ...

In 2025, the sky will be illuminated by 12 full Moons, plenty of meteor showers, four eclipses and three Supermoons. Here's a ...

Some stargazers are calling it a planetary parade: Every other planet in our solar system can be seen in the sky tonight.