RV Marcus G. Langseth arrives in Honolulu Harbor. She is a research vessel owned by the National Science Foundation (NSF) and operated by Columbia University’s Lamont-Doherty Earth Observatory. As a seismic research facility, the ship is able to provide 2D and 3D images of the Earth’s structure beneath the sea. She is also capable of supporting other marine geology/geophysics-related work. She was named after Dr. Marcus Gerhardt Langseth, who was a scientist at the Lamont-Doherty Earth Observatory. 6 May 2017.