26 May 2025
Zoom through space and journey through the Solar System and picturesque countryside on one or all of the five drives. This is a great way to explore some of New South Wales.
The colourful three-dimensional planets on the billboards are scaled in size relative to the huge observatory dome, and the location of the billboards is scaled in distance, just as you'd find the planets in outer space - 38 million times smaller than the real thing!
You can see each planet up on a billboard, and like a treasure hunt, you follow them to reach the sun (which is the Siding Springs Observatory, and each planet is scaled in size relative to the observatory’s dome).
Driving around I have seen many of these signs in NSW, but it was only recently that I realised there would be people who take the adventure and follow the signs.