The New Horizons space probe and it is currently way, way out in space. And recently it was tasked with measuring just how ...

According to the experts, the mysterious objects could be essential for a better understanding of the formation of the solar ...

A brand-new group of frozen objects, orbiting the sun out beyond the distant Kuiper Belt, has been spotted by the Subaru ...

Astronomers have discovered a group of objects beyond the Kuiper Belt, suggesting the existence of a second, more distant belt in our solar system.

Astronomers have discovered a hidden feature in exoplanet distribution that could explain the absence of so-called ...

A star’s flyby likely altered the orbits of trans-Neptunian objects beyond Neptune that changes how we view the solar ...

In the frigid realm beyond Neptune, the material available ... much closer together than the planets in our solar system. Some are Jupiter- or Neptune-size worlds that race on insanely hot orbits ...

Only NASA's New Horizons spacecraft—one of five spacecraft that have reached the outer solar system—has managed to fly ...

The Kuiper Belt (also called the Edgeworth-Kuiper Belt) is a disc-shaped region beyond the orbit ... new TNOs could revolutionize our theories about how the solar system formed,” said Lykawka.

Astronomers have uncovered evidence of a potential second Kuiper Belt, expanding the boundaries of our solar system. Here's ...