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

New Hubble Space Telescope imagery of the Saturn show it's 'ring spokes' in orbit around the gas giant planet. Credit: ...

NASA’s Dragonfly rotorcraft lander is designed for flight on Saturn's moon Titan. See a "half-scale Dragonfly lander model" ...

"We found that some comets in the inner Oort cloud form a long-lasting spiral structure." Spirals are a repeating theme in ...

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

Mercury, Venus, Mars, Jupiter, Saturn, Neptune and Uranus could be visible, but not all can be seen by the naked eye.

After dusk on Friday night, seven planets are expected to align in the night sky. But you'll need binoculars or a telescope ...

Mercury has a rocky surface when, facing the sun, can reach highs of 800 degrees while overnight lows could reach minus 290 ...

Friday night is one of the best nights to see the rare cosmic sight of all seven planets aligning across the night sky. The ...

Five planets are visible to the naked eye, according to NASA: Mercury, Venus, Mars, Jupiter and Saturn. Mars will appear reddish and high in the sky, near the Gemini constellation, Star Walk said.

A long awaited astronomical event dubbed as the planet parade or planetary alignment when four planets are visible to the ...

According to NASA, multi-planet lineups are visible "every few years," but a seven-planet alignment is particularly uncommon, as each planet's orbit varies, with some moving more quickly and Mercury, ...