Big CME the other day, high chance of an aurora Friday night. Check with spaceweather.com on the net. Will be lucky to get anything in Sydney, so I intend heading down as far south as the family will let me tomorrow night in hope of spotting and photographing an aurora. Mind you, if the CME hit earth straight on, we could have a Carrington event with the potential to destroy electricity lines and transformers, leading to electricity supplies simply stopping for quite a while, which would be truly devastating.