Messier 102 (Wikipedia)Messier 102 (also known as M102) is a galaxy listed in the Messier Catalogue that cannot be unambiguously identified. Its original discoverer Pierre Méchain retracted his discovery two years after publication and said that it was a duplicate observation of Messier 101. Later historical evidence favors that M102 is actually the galaxy NGC 5866, although other galaxies have been suggested as possible identities. The National Aeronautics and Space Administration (NASA) considers it to be the same as NGC 5866.
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Seattle–Tacoma International Airport (Wikipedia)Seattle–Tacoma International Airport (IATA: SEA, ICAO: KSEA, FAA LID: SEA), branded as SEA Airport and also referred to as Sea–Tac (/ˈsiːtæk/), is the primary commercial airport serving the Seattle metropolitan area in the U.S. state of Washington. It is in the city of SeaTac, which was named after the airport’s nickname “Sea-Tac”, approximately 14 miles (23 km) south of Downtown Seattle and 18 miles (29 km) north-northeast of Downtown Tacoma. The airport is the busiest in the Pacific Northwest region of North America and is owned by Port of Seattle.