We were on our way to Dallas, TX.I was in the backseat of the car, while my grandparents were in the front.We were about 20-30 minutes away from Dallas, and were away from the city. Sort of in a woods area on the highway, nothing but mainly trees. No stores or anything. I was looking outside the window, just looking at the stars. The sky was a very dark navy blue color. Then I saw the UFO. It seemed to be going slower than what a plane would go in the sky. It was a triangle shape, with 3 bright white lights on each tip. The two lights in the back pulsated. I knew it was triangular shaped, because the 3 lights were at the tips of the triangle, and I could see the pitch-black triangle shape, against the dark navy-blueish sky. I'm not sure how big the object could've been, but from what I can remember, it seemed far away. Kind of like if you were holding a penny up, that's how big it could be in the sky. I was really stunned. I'm still wondering what it could be.. I finally lost sight if the object after a couple minutes, because the car was driving forward, and the UFO was going the opposite direction we were moving in.. Has anyone seen a UFO like that? I'm really curious and really do want answers.. Thanks.