Somewhere beyond the orbit of Neptune, a frozen rock roughly 300 kilometers across just broke the rules. Astronomers watching ...

Hundreds of thousands of icy rocks lurk around in the Kuiper Belt, a place discovered just a few decades ago, and exists far beyond Neptune. As a NASA spacecraft sojourns deeper into space, it has ...

Unexpected find: A stellar occultation revealed gradual light dimming, suggesting a thin atmosphere around 2002 XV93, far smaller than known atmospheric worlds like Pluto. Theory challenged: Models ...

Add Yahoo as a preferred source to see more of our stories on Google. Space is filled with dust formed of tiny particles just microns — millionths of a meter — in size. Much of the dust in our solar ...

A rare observation opportunity revealed the presence of a thin atmosphere around a small object beyond Pluto.

Eleven objects found at the extremities of the solar system could mark the location of a 'Kuiper Belt 2.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

A team of astronomers working in Canada, France and the United States have discovered an unusual small body orbiting the Sun beyond Neptune, in the region astronomers call the Kuiper belt. This new ...

CAMBRIDGE, Mass. — Until now, astronomers have used telescopes to find Kuiper Belt objects (KBOs), moon-sized bodies, and obtain their spectra to determine what types of ices are on their surface.

The Solar system is bigger than NASA thought. There are a lot of huge objects at the edge of the solar system that we have not seen but can indirectly estimate. When astronomers say Kuiper Belt Object ...

the binary is 405 km, with a range of 350 — 470 km, and the effective visible geometric albedo for the system is 0.079 with a range of 0.055 — 0.11. The binary orbit, magnitude contrast between the ...