An Egyptian astronomer called Ptolemy (AD100-168) described one of the earliest ideas for how the Solar System is structured. Ptolemy’s model and many earlier ideas of the Solar System had the ...

They are all part of the Maine Solar System Model, a representation of the solar system that stretches 40 miles from the University of Maine in Presque Isle to Houlton. The 20-year-old model was ...

The exact shape of the Oort cloud and how it is affected by forces beyond our solar system have, so far, remained mysterious. Now, researchers have developed a new model that suggests the inner ...