Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

Ever wondered how planetary systems like our own solar system form? Thanks to the European Space Agency's Gaia space ...

On December 19, avid skywatchers can catch a glimpse of the mysterious visitor through powerful binoculars or a telescope ...

The solar system is far bigger and stranger than most of us realize. This video explores ten mindblowing facts that change ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the ...

Even worse, the orbit of Mars is elliptical (think of a slight oval rather than a perfect circle), which means that sometimes ...

TRAPPIST-1e, an Earth-sized world in the system’s habitable zone, is drawing scientific attention as researchers hunt for ...

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

The Moon formed from a giant impact of the proto-Earth with the ancient protoplanet Theia. In a new study, a team of scientists from the United States, Germany, France and China measured iron isotopes ...

Due to the lapse in federal government funding, NASA is not updating this website. We're working continuously to improve our search results. If you aren't finding what you expect, please use our ...

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...