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

The exoplanet, a planet beyond our solar system, has been dubbed TWA 7b after NASA's James Webb Space Telescope captured evidence of it.

Detecting exoplanets is one thing, but imaging them is another thing entirely. Astronomers can detect them by the way they ...

Given just how big space is, the solar system seems like it shouldn't be too mysterious. But there are actually plenty of ...

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have discovered a new planet in our solar system.

Scientists have identified an object about 700km wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a highly elongated ...

Cheng said the discovery of 2017 OF201 has implications for hypotheses involving the potential existence of a ninth planet in our solar system, dubbed Planet X or Planet Nine. This is because 2017 ...

Its size is estimated to be a bit smaller than Ceres, which is the smallest of the solar system's five recognized dwarf planets and has a diameter of about 950 km. Pluto, the largest of those ...

WASHINGTON >> Scientists have identified an object about 435 miles wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a ...

Scientists have discovered a colossal object approximately 435 miles wide in the frigid outer reaches of our solar system, which may qualify as a dwarf planet. Named 2017 OF201, this distant ...

Possible New Dwarf Planet Spotted Near the Edge of the Solar System By Will Dunham WASHINGTON (Reuters) -Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid ...

The Kuiper Belt, a region of the solar system past Neptune’s orbit, is likely home to hundreds of thousands — if not millions — of icy objects that vary in shape and size.Over 2,000 trans-Neptunian ...