Learn how a possible ninth planet, the theoretical Planet X, could have acquired its wide orbit in the outer Solar System - a ...

Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this year.

OF201 spends only 1% of its orbital time close enough to us to be detectable. The presence of this single object suggests ...

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show.

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

A group of astronomers from across the globe, including a team from the University of Washington and led by Queen's ...

Dozens of NASA's missions to explore the cosmos could be in jeopardy under a budget proposal from the Trump administration.

As NASA rolls out more powerful telescopes in the future, scientists will need a way to determine where to point them. A new ...

A computer simulation predicts that the Rubin Observatory will discover millions of previously undetected objects in the ...

Researchers from the UW and Queen's University Belfast believe that knowledge of the objects in the solar system will expand exponentially when a new ...

"Are we alone?" This ancient question has occupied humanity's mind for a long time. In 1995, the discovery of the first ...

Mar. 17, 2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... Webb Telescope Captures Its ...