Indian; a hydrographic survey vessel that carries out hydrographic, geophysical, and oceanographic surveys in the Indian Ocean since 2001; has been used to investigate historically significant shipwrecks and the submerged remains of the lost city of Poompuhar.
Spanish; a global research vessel, used since 1991 for studies of geology, geophysics, hydrography, physical and chemical oceanography, marine biology as well as for logistical support to the Spanish Antarctic bases.
Australian; research vessel used since 2014 for atmospheric, oceanographic, biological and geoscience research from the tropical north to the Antarctic ice-edge mainly in the Indian and Pacific Oceans.
Norwegian; a research vessel that has operated primarily in the Arctic since 1992 for various research purposes, in particular marine biology and oceanography; was used for Mars rover simulations on Svalbard in 2009.
English vessel which took Edmond Halley to Saint Helena in 1676 to conduct a survey of the stars in the southern hemisphere. While there, Halley observed the 1677 transit of Mercury which enabled him to make one of the earliest calculations to estimate the size of the solar system.