Ever since humans figured out that planets move along predetermined paths in the heavens, they have tried to make models that can accurately predict their motion. Watchmakers and astronomers ...

This beautiful model of the solar system is an example of a type of instrument known as an 'orrery'. It is made of wood, brass and ivory with a paper scale which was printed and pasted on the top ...

Brass drum orrery made by George Adams in c. 1789. The orrery is a model of the solar system showing planetary motion; orrerys were used from the 17th century as demonstration models and became ...

What in the heck is an Orrery? If you’re looking at the image above we’re sure you’ve already figured it out (kudos to the big brains that knew the word). For those that don’t get it, an ...

TIMHi, I'm Tim Peake. I'm an astronaut based here at the European Space Agency in Germany, and from December 2015, to June 2016, I spent six months orbiting Earth on the International Space Station.