Silent golden globe executing radical manuvers before accelerating up into space.I was standing outside my friends shed in Northern NSW. Isolated area no city lights at all.I was answering a call of nature, night was very clear, winter in southern QLD, Northern NSW tends to clear nights and little cloud cover. I was watching a light plane on the normal flight path from Casino, a small regional centre 1 hours drive away, disappearing over the boarder ranges (range that straddles the border between nsw and qld). I could see the blinking navigation lights and just hear the engine noise faintly.Just then a golden sphere moved into my field of vision moving west to east, across the normal flight paths and below the altitude of the light plane that was just disappearing. A lot closer in fact. It moved in total silence for a bit, then executed several high speed zig zags across the sky. Hard to tell how far but way beyond the capabilites of any aircraft I know.It then proceeded at the same slow pace as before briefly before accelerating extremely fast up into the sky while dimming to total black. I caught one or two glimpses as it shot up into the sky as it cut off the light of a couple of stars. Then I lost it.As an aside I wanted to call out to my friends in the shed but could not summon the will? to do it. Very strange feeling indeed.((NUFORC Note: Date is approximate. PD))