The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

The newly discovered object, named 2017 OF201, has a 25,000-year orbit and is believed to be a large contender for dwarf ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

Scientists have identified an object about 435 miles (700 km) 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 ...

Thank whoever decided to make the Dark Energy Camera Legacy Survey public for this discovery A trio of scientists have ...

Brown’s discovery of Eris, an icy world in the Kuiper Belt beyond Pluto, led to the reclassification of Pluto as a dwarf planet. He has been dubbed the “Pluto Killer.” Pilot project launched ...

Every year, Earth follows a familiar pattern of seasonal changes: As summer rolls around in the Northern Hemisphere, winter creeps in in the Southern Hemisphere, and vice versa. But do other ...

But now, the so-called dwarf planet has set up shop in the realm of the water bearer — where it will remain until March 8, 2043. Petite but potent, Pluto was discovered in 1930 and re-classified ...

In a childhood filled as much with awe as abuse, Brown learned quickly the art of foraging, fixing and fashioning anew. These days, Brown’s creations sell for sums unimaginable to her childhood self, ...

The solar system consists of the Sun, our home star, and everything that is bound to it by gravity: the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, along with dwarf ...