Astronomers have discovered fresh evidence suggesting the possible existence of an unseen planet in the far reaches of our ...

The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came ...

While Planet Y has been not yet been directly observed, unexpected inclinations found in the orbits of roughly 50 distant objects in the Kuiper Belt, suggest the presence of an "unseen" planet.

AROOSTOOK COUNTY, Maine (WAGM) - Aroostook County’s iconic Maine Solar System Model is about to get even bigger. Two new dwarf planet models are being added to the roadside attraction that has ...

For the first time since 2008, two new planets are being added to one of northern Maine's most famous — and scientifically accurate — roadside attractions. Dwarf planets Haumea and Makemake are the ...