A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 ...

A passing star has been discovered that could cause chaos in the Solar System, sending Earth flying out of orbit.

In about 5 billion years, the Sun will run out of hydrogen at its core. This will make it swell up into a red giant, as it ...

For the unversed, "Planet Nine" is a hypothetical planet which is reportedly larger than Earth that is thought to orbit ...

A group of astronomers from across the globe, including a team from the University of Washington and led by Queen's ...

Astronomers find evidence of a possible ninth planet beyond Neptune, reigniting the debate about the formation of the Solar ...

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

A new member of the solar system has been detected, the second-largest of its kind, suggesting there may be more like it ...

Scientists reveal the clearest images of the Sun’s corona using a new adaptive optics system, opening new paths for solar ...

Tianwen, which means "questions to heaven," is the name given to China's program of robotic Solar System exploration. Tianwen ...

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond ...

Astronomers spotted water around a young, sun-like star for the first time ever, and it could help us understand solar system formation.