Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

The James Webb Space Telescope spotted signs of solid minerals. These are known as silicon monoxide, beginning to cool and ...

The finding marks the first time a planetary system has been identified at such an early stage of formation. One U of M ...

Scientists have been able to recreate the extreme conditions found on icy moons in deep space—and revealed the unstable ...

Nearly a month ago, a mysterious object was seen hurtling through the solar system and later confirmed as an interstellar ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

The future of our solar system has long captivated both scientists and stargazers alike. As highlighted in a recent Live ...

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our ...

The answers to those questions depend on how we define the death of the solar system.