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 ...

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 ...

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

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

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 ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

Studies of 15 M-type stars have revealed new insights into the potential presence of exoplanets. A new study led by ...

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 ...