Around 2 am I laid in bed but couldn't realy sleep as it was too warm. The bedroom was located in the basement, having big windows facing the yard. I opened my eyes amd saw a bright greenish light, maybe a beam, enlightening the yard. The light was brighter than the usual spot located in the yard and it had a different light color (the actual halogen spot is not green). Somehow it didn't seem to bother me and I felt to be at odds with myself whether I should get up and have a look out off the window or to get out off the house. In someway I also felt like I wasn't really able to move amd I closed my eyes again. After about 1 minute I got scared to death when the light disappeared but a noise I've never heard before come from over the house. It was a growling, roaring and rumbling noise that went through my bones and went from a deep sound to a higher and higher sound as the thing liftet off. I still wasn't able to move and shocked deeply. After some 10 minutes later I heard the same noise again. This time it sounded like it was a couple of streets away. The same roaring with the same lift off sound. After that weekend, I told a colleague about it and he told me that he read something in a forum from a guy who wrote that he had seen something glowing and hovering over the village where I was that night, but I couldn't and can't find his entry. If anybody could tell me what it was that I saw and heared, if anybody could approve this happening it would really ease my life as I've been dealing with this for 7 years now.