Giant Floating Jellyfish

It was dark outside and I was in my basement. I looked out the window at the back of our house and saw a massive light pink jellyfish two houses down in front of the neighbours driveway at 150 Elkhart Lane. It was so big, about the length of two cars from top to bottom and the width of one car. All I could see was the jellyfish through the window with no flying saucer or other light source that could have projected the light. Although I do recall seeing a strange large silver projector like device at the end of the driveway recently.