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 ...

The sun rises from the east, and sets in the west - this is a well-established fact for the longest time, and this is due to ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

New research says that Earth could be ejected from our solar system if a passing star was to come close enough.

A recent study indicates a small chance that Earth could be ejected from our solar system due to passing stars. Simulations ...

Researchers for NASA have identified a new planet outside of our solar system, also known as an exoplanet.Officials said they ...

Wide-orbit planets are fairly common according to the study, and there's a good chance we have one of our own.

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

The monstrous 85-mile-wide comet C/2014 UN271 is the second most distant body originating from the Oort Cloud found to be ...

The Voyager probes we sent from Earth back in the 70s found an incredible 'wall of fire' at the edge of our solar system ...