Beyond Neptune lies the Kuiper Belt, a vast expanse of icy bodies that may hold clues to the solar system’s formation. These ...

which Stern calls the solar system’s attic. The debris cast there by Jupiter may include some lost planets. “I think the Oort cloud will blow our minds,” says Stern. “It will be littered ...

A decade of observations with the Subaru Telescope in Hawaii has uncovered the existence of an intriguing cluster of objects ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

The two Voyager spacecraft continue to be incredibly useful to Nasa, and losing it might have meant losing some of our most important information about the very edges of our solar system.

Despite common assumptions, the disk of our Solar System ... in the way of our system’s formation. Our s is thought to have emerged from a nebula—a gargantuan cloud of dust and gas—about ...

An curved arrow pointing right. It took the Voyager 1 spacecraft over three decades to leave the solar system (and scientists still aren’t sure when it did). We need a new method of propulsion ...

Discover how a giant interstellar cloud known as the solar nebula gave birth to our solar system and everything in it ... so minerals and metals formed. And on the edge of the disc, far away from the ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far ... in flat circular or oval orbits, the Oort Cloud is more like a sphere, with many icy ...