My sons and I were on the way home when my oldest said he just saw a UFO. I pulled off the road expecting to see a meteror or something similar. What I saw was a large craft. We watched for 20-30 minutes an object low on the horizon hovering and rotating slowly. The object had 3 or 4 globe or round shaped lights that would move from left to right. This gave the lights a illusion on fading, but it was clearly rotating. I took out my cell to take a picture of it and 3 times I tried and all 3 times the image came out corrupted. My oldest got a picture of it with his phone, but because of the camera, it isn't very good (just a speck of light in the sky). None of us thought to video it with our cells. After a few more minutes it vanished.The location was in Brownwood behind the Home Depot. We were looking north towards Early Texas. The craft looked like it could have been over the intersection of 183 and 377.I still can not understand or grasp what my eyes saw. I am at a loss and feel like science has let me done because I can not explain it.Reports in the surrounding cities state the navy was running training exercises in our area and that they were using flares. I have seen the use of flares hundreds of times because I am only a few miles from the Army/Navy Helicopter Training fields at Camp Bowie. These were no flares. Flares are governed by the laws of Gravity, This floated and was silent. Aircraft are not silent. About 2-3 minutes after the "craft" vanished we did see several f16s. Likely the reason it took off out of there, I suppose.