My husband and I were driving along when all of a sudden, to our left, we saw a huge, about the size of a football field, luminous blue oval object moving toward us. It was at a low altitude. It very slowly moved over us and continued moving away from us to our right. Then about six helicopters, presumably from Edwards Airforce Base, came from our left (we were going south) and went over us and chased after it. We never told anyone until we heard of a similar object being spotted and watched for in Russia.