At the ragged frontier where the Sun’s influence gives way to the galaxy, a decades‑old spacecraft has stumbled into a ...

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 ...

A first-of-its kind AI-powered model attempts to better predict space weather and its impacts. The model — called Surya, for the Sanskrit word for "sun," was put together by NASA and IBM and trained ...

The Milky Way and Andromeda galaxies are predicted to collide and merge between 3.9 and 5.6 billion years from now, based on observed relative motion. The merger process will involve multiple ...

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse. When you ...

Astrophysicists are mapping a vast, hidden structure in the gas around the Sun that behaves like a tunnel carved through ...