Light passed over car on access road and disappeared

After exiting Zarzamora St, off of 410 Connally loop, we were on the access road traveling North bound, we saw a white light go over us and disappear. It was traveling horizontally. The white light went directly down the middle of our front windshield and passed us. It was about the speed of a helicopter, which at first glance we that it was. But it didn't have a red light or other lights, it was just a white light. We were going about 50 mph. It disappeared after about 3 seconds. I was in passenger side and saw it and thought my mind or eyes were playing tricks on me. But told me daughter and she said giggled that she thought the same too and saw same thing. I keep telling myself maybe it was a shooting star but I don't remember a trail after it. Also it didn't seem like it was falling down from the sky. It was going horizontally directly over us. It didn't look like a floating lantern because those are usually a yellowish orangey color.