Increased UFO sightings over Newcastle/Hunter Valley, Australia.Tonight I was walking down my back steps and stopped to stare out West at the mountains (between Mt Sugarloaf and the Watigans) when I notice a massive flash lasting one second and being just under the size of an Australian 5 cent piece happen.I'm familiar with shooting stars and alike but this one didn't move, it stayed in one spot in the night sky and almost looked like a portal opening and then closing with a white and a slightly different colour. What I mean by opening and closing is it started off as a dot got large then went back to a dot vanishing.The details in this report is strictly on today's sighting alone but in saying that I'd like to also address the below issue.This is the third UFO sighting I've seen in just over a year personally purely by accident, both other sightings being witnessed by me and others I were with at the time. Although these other encounters were stranger and more visible and lasted for over a minute. (contact me for details on the other two) There has also been around 2-3 sightings by others which were reported in the Newcastle Herald and were reported to happen over the southern end of Lake Maquarie with witnesses on either side of the lake.