When you buy through links on our articles, Future and its syndication partners may earn a commission. An artist's illustration of the Voyager 1 probe travelling into the Oort Cloud. | Credit: Science ...

The solar system does not end neatly at Neptune’s orbit. This episode reveals the vast, invisible structure of icy debris beyond the known planets, shaped by gravity and time. From scattered objects ...

Beyond the planets’ neat orbits lies a hidden vertical structure of our solar system. From the icy trillions of the Oort Cloud to the protective heliosphere, local interstellar clouds, and the vast ...

"We found that some comets in the inner Oort cloud form a long-lasting spiral structure." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

"If our solar system is indeed moving this fast, we need to question fundamental assumptions about the large-scale structure of the universe." When you purchase through links on our site, we may earn ...

Far from the Sun’s heat, orbiting the outer planets of the solar system, are moons with oceans of liquid water beneath their frozen surfaces. Keith Cooper finds out how planetary scientists are ...

There’s a bit of a paradox about our galaxy: it’s both jam-packed with stars and cavernously empty. The Milky Way is crowded in the sense that it holds hundreds of billions of stars, as well as ...