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

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

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

Early in our Solar System’s history, bits of icy debris were scattered and then gradually coaxed into a spiral alignment in ...

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

Let’s get this out of the way—any scientist studying Uranus will tell you that they’re tired of the planet being the butt of ...

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

The planets are not exactly lined up ... the twin Voyager 1 and 2 spacecraft in 1977 on a "Grand Tour" of the outer Solar System. Voyager 1 flew past Jupiter in 1979 and Saturn in 1980, eschewing ...

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 ...

NASA is tracking a house-sized asteroid set to whiz past Earth tomorrow at a thundering 29,304 miles per hour. The space rock ...

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 ...