Disc object southwest of Glenrock, Wy.at about 730 pm on 10/1/16, wife and I saw a disc shaped object, about 3 miles away, southwest of glenrock, wy sighting lasted about 25 min, obj move in zig zag manner, hovered, then would zigzag, clearly a disc shaped object, then object descended, looked like a possible landing, surely object was seen by travellers along I-25