Extreme large, very bright orb gave off no light to anything else, observed in texas.My first of two UFO encounters was after I had moved into my new house. We were still trying to unpack our room so I slept on floor and stared out my window for awhile. After about 30 minutes a huge white orb came over the window. The orb itself was incredibly bright but it cast no light around it. It seamed very low because it so large, it filled my entire view coming over the house and flew past the window. It gave off the sound of a very deep sounding yell. The sound was pretty quite but still unmistakable that the orb was making it.It was way to large for a plane and it was almost like a perfect circle. The bottom drooped down. It flew very slowly over the house, stopping for only a second a little past the window. It sped up almost suddenly, then slowed back to its original speed, like it re-thought its movements. The object then flew perfectly strait and level in the direction of north.