Project Blue Book Case #1148. On April 24, 1952, a bright object was observed over Milton, Massachusetts — a suburb immediately south of Boston. Milton's Blue Hills Reservation, the highest point in the Boston metropolitan area, provided elevated vantage points with panoramic views of the city, harbor, and surrounding landscape.
Milton's proximity to Boston's Logan Airport and the South Weymouth Naval Air Station placed it beneath busy airspace. The case was classified "Unknown."