It was early morning about 2am. I came home from an astronomy lecture I was running at Victoria university and had to tidy up after yet another of my sons late night party's then I was suddenly pushed to the floor with a loud ringing in my ears. After I composed myself I dared to look out the window, I saw this white round object in the sky about the size of my thumb held at arms length. it was not a uniform color with occasional discolorations. Then there was an increase in luminosity and then a dark figure blocked the light on the sphere and then I heard a voice calling out to me it seemed to say "Bob" this gave me an unnerving chill as this my birth name which I have changed since. This proves to me that it must have been telepathic aliens. This may sound stupid to you but the last person who new this name was Derick my good friend who sadly passed in the late 70s he was a father figure to me after my parents both passed in wellington harbor after their alien sighting, which I hadn't believed until now.