Hatfield Marine Science Center is a marine science research and education center next to Yaquina Bay of the Pacific Ocean in the U.S. state of Oregon. It is operated by Oregon State University in cooperation with five state and federal agencies co-located on site. Named after Mark Hatfield, a former U.S. Senator from Oregon, the HMSC occupies a 49acre site in Newport.Visitor CenterOpened in 1965, the Hatfield Marine Science Visitor Center is the public education wing of the HMSC. The visitor center's exhibits focus on marine species, marine research, and the coastal environment. Live marine animals on display include a Giant Pacific Octopus. Other exhibits focus on weather, tsunami, commercial fishing, ocean resource management, microscopic sea life, and tide-pool creatures and habitats. The visitor center offers public programs and tours and is open year-round. Admission is by donation.