Loud rumbling noise, 2 vertical white lights, smaller red ones, massive vehicle moving to northwest.Lexington, TX At about 2 AM, January 7, 2015, my husband and I heard what sounded like a loud, rumbling engine noise going over our house. (The noise was not as smooth as a jet, and it was much louder.) He ran out and called to me. I went outside, too.We couldn't see anything at first. Then, to the northwest and moving in that direction, we saw two pulsing white lights arranged vertically with a lot of space between them. My husband said there were a lot of smaller red lights all around them. (My night vision isn't too good.) They were moving as if in a formation, but it wasn't an orderly formation. It almost seemed like it was one huge vehicle, because all the lights were moving as one. It would have been a massive vehicle, and indeed, it sounded huge. All of the neighborhood dogs were barking loudly when this came over.