As a result of the International Astronomical Union’s 2006 demotion of Pluto from planet to dwarf planet, our solar system ...

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 ...

Along the way, Jupiter flung some smaller rocks out of the solar system altogether; the rest went to the asteroid belt. But most critically, as Jupiter settled into its own orbit, it moved all of the ...

This discovery doesn’t just reveal the makeup of one strange object. It could change what we know about how the entire Kuiper Belt—and even the solar system—formed. Scientists believe that ...

An international team used 40 years' worth of data from two space probes to track down what they believe are signs of this distant planet moving around our sun.

A new study from BYU professor of physics and astronomy Darin Ragozzine and former undergraduate student Maia Nelsen provides new insight into the structure of objects in the Kuiper Belt. Using data ...

The Kuiper belt, whose population and structure are ... For solar system science, astronomers will see a list of moving objects—those known and those previously unidentified—with orbital ...

Understandably, then, this list is completely subjective ... New Horizons also became the first spacecraft to visit a Kuiper Belt object, 486958 Arrokoth. New Horizons is now more than 60 AU ...

Distance distribution of Kuiper Belt Objects discovered by HSC on the Subaru Telescope ... it not only eliminates “small parent nebula” from the list of possible prerequisites, it greatly increases ...

In the outer reaches of the Solar System, beyond the ice giant Neptune, lies a ring of comets and dwarf planets known as the Kuiper Belt. The closest of these objects are billions of kilometers away.

A brand-new group of frozen objects, orbiting the sun out beyond the distant Kuiper Belt, has been spotted by the Subaru telescope, working with NASA's New Horizons mission to find new targets for ...