After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

Tiny grains from the asteroid Ryugu have shed light on the origins of the outer solar system over 4.6 billion years ago. MIT ...

When you get out past the planets of our solar system and keep going, you will eventually enter the Kuiper belt, which has ...

This hypothetical Neptune-sized planet would circle our Sun on a highly elongated path, far beyond Pluto. It could have a ...

We’re showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

Our solar system consists of Sun and celestial bodies bound to it by gravity, including planets, moons, asteroids, and comets ...

The 7 fastest planets in the solar system, ranked by their orbital speeds around the Sun, are as follows: Mercury is the fastest planet in our solar system, orbiting the sun at an average speed of 47.

Fastest Known Planetary System May Have Been Pushed by Our Galaxy’s Supermassive Black Hole ...

It would depend on a lot, say our readers, from how big it was to the route it took - but it could have significant ...

Astronomers are investigating the possibility of a hidden ninth planet beyond Neptune, which could explain unusual orbital patterns in the Kuiper Belt.

The Subaru Telescope has discovered new objects beyond the known Kuiper Belt, suggesting a more complex structure at the edge ...

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