Glowing orb flying spotted at 5:30am above North Ann Arbor at Earnhardt Rd & Old Earhardt Rd intersection. No flashing lights. Just a yellow/orange glowing ball traveling 100s of 1000s of miles quickly, stopped 2 times, I checked on it 1 minute later and it started flying the opposite direction nearly instantly. It flew diagonally, occasionally. It looked to be extremely high in sky. Very visible on clear cold night while walking my dog.