Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

The Solar System might not be as quiet and orderly as we think. Imagine one day looking up and seeing something strange in ...

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

An initial analysis suggests the object could be a young, cold planet with a temperature near 120 degrees Fahrenheit, NASA ...

NASA's James Webb Space Telescope has been unwaveringly focused on our universe. With its unprecedented power to detect and ...

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

In the outer reaches of our solar system, far beyond the orbit of Pluto, lies Sedna, one of the most mysterious objects ever ...

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

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

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

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

Astronomers have detected evidence of an exoplanet that would be the first to be discovered by the JWST. Using NASA’s James ...