Ask an eastern Australian about the Southern Aurora, and they might think you’re talking about the old overnight express train between Sydney and Melbourne. But! The train was named after the spectacular light show in the southern sky. The Aurora Australis to use the phenomenon’s correct name, and its northern equivalent the Aurora Borealis or Northern lights have a fascinating astronomical cause. And the nature of the Aurora remained a mystery until the 20th century, despite being documented for thousands of years. Let’s take a look!      Follow Cosmic Coffee Time on Twitter for some special content    twitter.com/CosmicCoffTime You can request a topic for the show! Or even just say hi! We'd love to hear from you. Email us! [email protected]