The White House bid to terminate NASA’s fantastical flights of exploration “across the solar system” threatens to explode ...

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

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in ...

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.

OF201, the object belongs to the same all-star family as Pluto: dwarf planets. Its diameter, roughly 435 miles (700 km), is ...

Researchers in the US have suggested there is a 40 percent chance a ninth planet could exist in our solar system. Planet Nine ...

The dwarf planet's existence also opens the likelihood of many more like it in our solar system waiting to be found. From our morning news briefing to a weekly Good News Newsletter, get the best ...

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

Researchers now appreciate that gas planets are more complex than first thought. New findings have implications for our ...

In the latest shutdown, the cosmic ray subsystem experiment on Voyager 1 and Voyager 2’s low-energy charged particle ...

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.