Next Tuesday something very cool is going to happen.
You probably won't notice, unless you possess a very powerful and expensive telescope.
It's called a Transit of Mercury. And it just so happens to be occurring at a very special and appropriate time ... 250 years, almost to the day, since James Cook spotted a transit from Mercury Bay.
Dr Ian Griffin from Otago Museum joins us to explain what this is, why it's interesting, and how you can learn more about astronomy.
Photo: AFP
