I was in my hot tub on the back deck and saw a ball of light go over my yard into the trees and disappear. It was about the size of a soccer ball. At first I thought it was a shooting star, then realized it was too low for that. I estimate the ball was about 30 feet up in the air when it zipped through the trees. I thought I was just seeing things. But then, about 5 minutes later, the same thing happened, except this time, instead of going straight, an exactly the same size ball of light zipped across my yard but went to the left. I then knew it was not my imagination. It too disappeared once it went behind the trees, and again, I estimate it was approximately 30 feet up in the air when it disappeared.