Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

Uranus' accidental discovery 240 years ago greatly enhanced our understanding of the solar system, doubling the size of the ...

How can Uranus teach us about exoplanets? This is what a recent study presented at the 56th annual meeting of the American Astronomical Society (AAS) Division for Planetary Sciences (DPS) hopes to ...

A new planetarium show at the American Museum of Natural History depicts a spiral in the Oort Cloud, a region far beyond Pluto that’s full of icy comets. (American Museum of Natural History) NEW YORK ...

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall, ...

Aliens may have been closer to Earth than first thought. New research from NASA reveals that Ceres, the dwarf planet in the asteroid belt between Mars and Jupiter, harbored the right conditions to ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...

Only four such objects have been discovered, astronomers say. Astronomers have discovered a "fossil" body residing on the outskirts of the solar system, according to new research. The object – which ...

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show. At the American Museum of Natural History last fall, experts were hard at work preparing ...

A tiny meteorite is rewriting what scientists thought they knew about the origins of our solar system. New evidence found in shavings from a meteorite known as Northwest Africa 12264 — a 50-gram (1.8 ...

The nearest stars to us provide vantagepoints to study the different stellar populations in the Milky Way. They are brighter than similar stars located at larger distances, so they can be observed in ...