Using a NASA supercomputer to run models, researchers led by SwRI astronomer David Nesvorny now believe that the Inner Oort cloud looks like a spiral disk, around 0.24 light-years across, with two ...

Mysterious cloud at solar system’s edge found to host strange ‘mini galaxy’ - Oort cloud’s origin and shape can help unravel ...

The new kid in the celestial block is hanging around the constellation ... to the extinction of the dinosaurs. In fact, the solar system is littered with asteroids — debris left over from ...