The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it ...

But which parts should you choose? Low Tech Magazine has the answer, in the form of a guide to building a small solar power system. The result is an extremely comprehensive guide, and though it ...

The vastness of our Solar System and the distances involved ... Observatory in Greenwich Park in East London to build his own scale model. This is based on the sun being the size of a football.

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 ...

In the PAGER project, scientists from Europe and the US combined the models from the sun and solar environment with those for the Earth environment to develop a comprehensive predictive system.

This series of his videos explains how size, distance, and space make solar system models so tricky.