Michael Mattiazzo THE brightest comet in more than a decade, known as C/2023 A3 Tsuchinshan-ATLAS (pronounced choo-cheen-shan, is fast approaching.

This Oort cloud comet originated in the far reaches of the solar system, some 90,000 times Earth-Sun distance.

The nucleus is about 2-5kms across, but the tail length can grow to millions of kilometres.

This is the comet's first and only trip into...