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

Researchers believe that 2017 OF201’s highly eccentric orbit points to a chaotic origin, possibly caused by a gravitational ...

New James Webb Space Telescope data reveal Pluto's high-altitude haze is a key driver of the climate on the dwarf planet, ...

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond Neptune, it orbits the sun every 25,000 years.

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new ...

The new object could also challenge the hypothesis that there's a "Planet X" or "Planet Nine" beyond Pluto, with gravity affecting dwarf planets and other objects in the Kuiper Belt. That's ...

In 2006, updated research led to Pluto ... flying from New York to Houston — it wouldn't be able to clear those objects out of its way. Therefore, it couldn't be classified as a planet and ...

New data captured by the James Webb Space Telescope has finally given astronomers new clues about how Pluto cools itself.

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

There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be fair—but one of the largest yet discovered and with an orbit around the Sun that ...

Venus — our planet of love and attachment — forms a charged and challenging square with Pluto, our power planet of sex, death ...