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 ...

"This is a big step in understanding the outer solar system." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Astronomers have found that a weird ...

An interstellar object – a comet from a distant star system – is passing through the space between Jupiter and Mars, and according to a recent study, Comet 3I/Atlas may be 3 billion years older than ...

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 ...

In 2015, a NASA spacecraft snapped spectacular photographs of Pluto, forever changing humanity’s view of that world. On Tuesday that same probe, New Horizons, will provide a closeup of the farthest ...