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

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 ...

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

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

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

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

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

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

The Solar System seems calm, but that tranquility is fragile. Now imagine one day looking up and spotting something ...

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

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

Passing stars could trigger instability across the solar system, resulting in Earth being hauled out of its orbit.