Astronomers have made an extraordinary discovery at the outer edge of our solar system—a strange space rock that dances in perfect rhythm with Neptune. The object, named 2020 VN40, is part of a group ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS. A remarkable ...

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 ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...