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

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

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

The newly discovered world — a "sednoid" — challenges what planetary scientists thought they knew about the edge of the solar ...

The Solar System, home to Earth and countless other fascinating planets and moons, exists within the Milky Way galaxy. But ...

There’s a visitor in town, and its name is 3I/ATLAS. The presumed interstellar comet presents a rare opportunity for ...

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

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

Astronomers have discovered the earliest seeds of planets forming around HOPS-315, a baby star located 1,300 light-years away ...

The finding marks a major milestone in the study of planetary formation and opens a window into the past of our own solar system, the researchers say in a press release from the European Space ...

Astronomers first identified these minerals using the now-three-year-old James Webb Space Telescope. To see where exactly the ...