Scientists have proposed two experimental spacecraft that could reach one of the farthest known objects in the solar system ...

A planet far, far away. 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 ...

Sedna will reach its closest approach to the Sun in 2076, providing a remarkable space-faring opportunity that won’t come ...

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

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 ...

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

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

The James Webb Space Telescope has discovered an exoplanet using the direct-imaging technique. The host star's light was ...

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

The dwarf planet's existence also opens the likelihood of many more like it in our solar system waiting to be found. A dwarf planet is "classified as a celestial body that orbits the sun that has ...