the object, made no sound, and changed from a big , bright, light to a small green light and moved very fast,,,,

i was walking out of the house when a bright light caught my eye,, directly right above the tree tops in front of me was this object hovering there at a standstill it seemed,, i stared in awe unable to scream it was so unreal what i was seeing,,,it hovered there for about 5 min.. then so fast a small green light appeared and it went so fast towards the west,, at the speed of light,, it was huge, round in shape, full of light,,it was very dark out and the object was so full of light,unlike anything i had ever seen ,, i went home and woke my parents up and told them , they said they had a search party on top of my hill here because someone else had seen it and thought it was a plane going down in fire,about a week later i had visitors from the Cincinnati, Ohio UFO reporting center,, visit me and ask me questions about it..
Date is approximate.  PD