Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

There's a new moon king in our solar system: 12 new moons were discovered around Jupiter, which makes it the planet with the most moons. Jupiter is already the biggest planet in our solar system.

As the name suggests, when coupled with the influence of distant outer moons, such satellites help to herd the particles orbiting in the ring system together while 'clearing out' others.

Given the name 2017 OF201, ... "We still don't know much about the solar system far away because currently it is difficult to directly see things beyond about 150 astronomical units," Cheng said.

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

So, while Earth will eventually leave the solar system one way or another, it's not something we will have to worry about for a few billion years yet. Probably. Originally published on Live Science.

Given the name 2017 OF201, ... “We still don’t know much about the solar system far away because currently it is difficult to directly see things beyond about 150 astronomical units,” Cheng ...

The smokestacks on the aging Sherco coal power plant tower over gleaming solar panels that stretch across thousands of acres of farmland. The polluting coal plant is on its way out, scheduled for ...

The 3,500-acre Ivanpah Solar Electric Generating System generates up to 400 megawatts of solar energy, which is enough to power 140,000 homes.

Some plants require a third name which refers to the botanical variety. This form of the species has something naturally occurring and special about it, separating it from the more common form.