Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of ...

Astronomers have announced the discovery of A11pl3Z, a massive new interstellar object entering our solar system.

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The discovery of dwarf planet 2017 OF201 hints at a 'population behind it with hundreds of ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Artist's impression of Planet Nine – a suspected “wide-orbit” planet – with the Sun in the distance; Neptune's orbit is shown ...

Our solar system is a pretty wild place, full of amazing stuff. From the giant Sun to the tiny rocks floating around, there’s ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in elliptical trajectories, and they are all different in size, composition, ...

A possible dwarf planet, like Pluto, has been observed in our solar system, according to a preprint published in arXiv. The area of space where this planet was found was previously thought empty.

Since its debut in 2021, the James Webb Space Telescope has dazzled viewers with its infrared images of galaxies, nebulae, ...

Over the last few years, the term "Goldilocks zone" has come to be widely used to describe the range of distances from a star ...