A person driving in Austin saw bright lights in a distance and then realized it was quite possibly part of a very large craft, even sporting windows and an undercarriage. Read the full MUFON report:
Driving north on 183 in Austin TX between 2200 and 2230 hrs, as I passed MLK and approached Loyola I noticed a grouping of lights off the west side of the highway over Little Walnut Creek Park. Thought it may have been a couple choppers at first cause planes coming in to land are always on the east side of the highway in that area. As I got closer to Loyola I noticed more lights like more of the object being exposed as my point of view changed.