Along the road from Moree we came across part of the Worlds largest Virtual Solar System Drive

The Worlds Largest Virtual Solar System Drive explores the planets as if you were hurtling through space. Journey through the Solar System and picturesque countryside on one or all of the five drives that lead to Australia's largest optical astronomy centre (which you will find the sun), Siding Spring Observatory is one of the country's largest centres for optical astronomy research. 

They were interesting unfortunately at Neptune across the concrete barrier it had become a dumping ground

Also found this memorial for the opening of the Siding springs Observatory

Caches today 14 - 5 Trad, 5 Trig, 1 Multi, 3 Virtual for a total of 253