A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...

New research suggests that a binary pair of Kuiper Belt objects, known as the Altjira system, is actually made up of three ...

With a sun more than 4.5 billion years old, our solar system is considered "middle-aged," and the pictures of what it might ...

After dusk on Friday night, seven planets are expected to align in the night sky. But you'll need binoculars or a telescope ...

Floating around at the edge of the Solar System are leftovers from its formation. This is the Kuiper Belt, which is composed ...

And the planet’s moons are even more mysterious ... our century-long fear and desire to make contact with life from outer space, it does so with a winking acknowledgement of how much this ...

Whenever multiple planets become visible to the naked ... Uranus and Neptune, which orbit in the dim, cold depths of the outer solar system, are hard to spot, but are there. Neptune "absolutely ...

The stars may not be aligning on Friday night, but seven planets in our solar system just may be. For weeks, outer space enthusiasts have been gearing up for a planetary alignment, or "planetary ...