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 ...

WASHINGTON (Reuters) -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 ...

The object’s aphelion the farthest point on the orbit from the Sun is more than 1,600 times that of the Earth’s orbit,” said ...

Astronomers have identified a new trans-Neptunian object, 2017 OF201, located far beyond Pluto. Its enormous size, comparable ...

NASA's New Horizons spacecraft that flew past Pluto in July may have discovered clouds in the tiny planet's atmosphere, New Scientist reported. New Horizons scientists first discussed the ...

Image: NASA/JHUAPL/SwRI Start Slideshow It’s been 91 years since amateur astronomer Clyde Tombaugh first spotted ... of Pluto and how they compare to the 2015 photoshoot. Minor planets New ...

He’s involved in planning a mission to send a probe past ... do with Pluto. Should it be entered along with the other TNOs on the official list of our solar system’s “minor planets”?

And in the past few years astronomers ... many astronomers will continue to see Pluto as one of the most fascinating objects in solar system, the Minor Planet Center's Spahr said.

Today, when tens of thousands of minor planets have been discovered (most residing in an "asteroid belt" between Mars and Pluto), not even the meanest of teachers would require students to learn ...