Here's everything you need to know about why Saturn's rings are about to disappear — and when they will return.

Venus, Mars, Jupiter, Saturn, Uranus, and Neptune were already visible in the night sky after dusk this month, but Mercury joined them on Feb. 28. While it's common to see a few planets line up in the ...

Astronomers believe they've discovered a spiral structure inside the Oort cloud that surrounds our solar system.

"It's like a game of billiards around the solar system, flying by a couple of planets at just the right angle and timing to ...

A rare celestial event will take place tonight as a planetary parade lines up in the sky, offering a view of every planet in the solar system—except Earth.

Tonight, looking up into the night will bring a treat to the eyes as every planet in the solar system can be viewed.

A new study claims that a mineral found in Mars' dust called ferrihydrite, which forms in the presence of cool water, is likely what gives the planet its reddish hue.

A stunning planet parade is now visible in the night sky. A planet parade is when several of our solar system's planets are ...

The triple star system is sending comets, asteroids and meteors our way, and the number of interstellar objects entering the solar system will rise.

The parade of planets, when all seven of earth's solar system neighbors can be seen in the night sky, starts Friday and continues through next week.

Luna skims by Mercury, Venus, Uranus, Neptune, and Jupiter as it grows from a thin crescent to just past First Quarter in the ...

This Friday, all seven planets will be in the night sky for a brief period. Join the cosmic spectacle and learn where to look ...