Rover explores the solar system's oceans

Astronomers have uncovered increasing evidence that some bodies in our solar system, like Jupiter's moon Europa and Saturn's moon Enceladus, are actually ocean worlds.

Astronomers find 20 new moons around Saturn

The discovery of 20 previously unknown moons around Saturn has helped the ring planet surpass all others in our solar system, according to the International Astronomical Union's Minor Planet Center. It now has 82 known moons; Jupiter has 79.

30 years ago: Voyager 2 snaps photo of Neptune

Thirty years ago, NASA's Voyager 2 mission flew by Neptune, capturing the first close-up images of the blue gas giant. Before this, the eighth planet in our solar system was only known as a fuzzy dot in the distance.

What's happening inside Saturn's rings?

During the final year of NASA's Cassini mission before it completed a "death dive" into Saturn's atmosphere in 2017, the spacecraft gathered as much data as possible about the planet's rings.

Saturn's rings haven't always been there

While Saturn's rings may disappear in less than 100 million years because gravity is pulling them into the planet, apparently they haven't always surrounded the planet, either. The finding was published in the journal Science on Thursday.

Saturn is losing its rings quicker than expected, NASA warns

Saturn's rings make it one of the most striking planets in the solar system, but scientists believe they could disappear in less than a 100 million years -- which isn't all that long when you consider that the gas giant itself is more than 4 billion years old.

Could life exist on Saturn's moon Enceladus?

Last year, astronomers announced that ocean worlds like Europa and Enceladus may be the best chance for finding life outside of Earth in our solar system. Now, the discovery of complex organic molecules in plumes that rise from Enceladus' subsurface ocean further suggests that the moon could support life as we know it.