The solar system's journey through the galaxy is more complex than most imagine. While we often picture planets orbiting the ...

The astronomers observed hot minerals just beginning to solidify – the first specks of planet-forming material, the ...

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

The Dutch-led team used NASA's Webb Space Telescope and a telescope in Chile to observe a young star some 1,370 light-years ...

Explore the fascinating motion of our Solar System as it journeys not just around the Sun, but also through the vastness of the Milky Way galaxy and the Universe beyond. This in-depth video unpacks ...

Astronomers have discovered a "fossil" world lying in the outskirts of the solar system, according to new research.

Most comets, including the well-known Halley's, loop through our solar system like cosmic time capsules that formed alongside ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Scientists discover 3I/ATLAS, a possible 7-billion-year-old comet from deep space. It may rewrite what we know about the ...

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists have ever seen.

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.