Flashing light source speeding like a meteor suddenly moves back its path twice.My son and I had to sleep in the pickup truck since the cabin is packed with friends. Looking at the sky from the back seat through the back window, I thought I saw a meteor from the back side of the truck, but soon realized it was an aircraft because the light source was flashing in equal intervals. I was amazed by its speed because any material subjected to that speed should have been burnt due to air friction.Once my view was blocked by the truck's roof, I got up and slid the sunroof open in order to get a view. I was surprised that the light source suddenly moved back from where it was going without even slowing down.It continued flashing, and half the distance from where I first saw it and the point where it moved back, it made another sudden turn making about 30 degree angle.I and my son have got a good view of the flashing light from the truck’s sunroof and I told him that we just saw a UFO.