DALLASI absolutely love this, it's called an orrery, and it's a little mechanical model of our solar system. You can see the planets here, orbiting the sun as they would do in real life.

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 paper, the researchers describe how they modeled the orbits of the four outer planets and performed 50,000 simulations of a large object passing through the solar system to determine if ...

Southwest Research Institute (SwRI) has partnered with the Carnegie Institution for Science to perform laboratory experiments that recreate the conditions of Saturn’s moon Titan in a tiny vial. The ...