The Kopernik Observatory & Science Center (KOSC) is a public observatory in Vestal, New York. It opened to the public on 16 June 1974 by the Kopernik Society of Broome County to commemorate the 500th anniversary of the birth of the astronomer Nicolaus Copernicus (Polish: Mikołaj Kopernik) in 1973. Its mission is to offer hands-on investigations and outreach programs for educating all ages about astronomy and science using advanced optical telescopes, computers and other tools. It is the first science laboratory facility in New York State designed for K-12 teachers, students and their families, and has been one of the best-sited and best equipped public observatories in the Northeast United States for nearly the last 40 years.