Driving on the freeway while both witnesses faced forwards. A large teardrop shaped object flew overhead. The object was either all black or didn’t reflect light. It had some kind of texture or rough surface. The object has no lights. It didn’t emit any sound or resonance as it flew over the vehicle, about 20-30 feet over head. The object flew over the vehicle from the front to the rear as it traveled overhead going in the opposite direction of traffic. The front was rounded and Estimated to be 4 ft across and tapered like a teardrop