The Mariana Trench is an oceanic trench located in the western Pacific Ocean, about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest oceanic trench on Earth. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width. The maximum known depth is 10,984 ± 25 metres at the southern end of a small slot-shaped valley in its floor known as the Challenger Deep. The deepest point of the trench is more than 2 km (1.2 mi) farther from sea level than the peak of Mount Everest.
The Challenger expedition of 1872–1876 was a scientific programme that made many discoveries to lay the foundation of oceanography. The expedition was named after the naval vessel that undertook the trip, HMS Challenger.
HMHSBritannic was the third and final vessel of the White Star Line's Olympic class of steamships and the second White Star ship to bear the name Britannic. She was the youngest sister of the RMS Olympic and the RMS Titanic and was intended to enter service as a transatlantic passenger liner. She was operated as a hospital ship from 1915 until her sinking near the Greek island of Kea, in the Aegean Sea, in November 1916. At the time she was the largest hospital ship in the world.
Sylvia Alice Earle is an American marine biologist, oceanographer, explorer, author, and lecturer. She has been a National Geographic Explorer at Large since 1998. Earle was the first female chief scientist of the U.S. National Oceanic and Atmospheric Administration, and was named by Time Magazine as its first Hero for the Planet in 1998.
A nuclear-powered icebreaker is an icebreaker with an onboard nuclear power plant that produces power for the vessel's propulsion system. Although more expensive to operate, nuclear-powered icebreakers provide a number of advantages over their diesel-powered counterparts, especially along the Northern Sea Route where heavy power demand associated with icebreaking, limited refueling infrastructure along the Siberian coast, and endurance required make diesel-powered icebreaker operations challenging. As of 2023, Russia is the only country that builds and operates nuclear-powered icebreakers, having built a number of such vessels to aid shipping along the Northern Sea Route and Russian arctic outposts since the Soviet era.
A deep-submergence vehicle (DSV) is a deep-diving crewed submersible that is self-propelled. Several navies operate vehicles that can be accurately described as DSVs. DSVs are commonly divided into two types: research DSVs, which are used for exploration and surveying, and DSRVs, which are intended to be used for rescuing the crew of a sunken navy submarine, clandestine (espionage) missions, or both. DSRVs are equipped with docking chambers to allow personnel ingress and egress via a manhole.
The Puerto Rico Trench is located on the boundary between the Caribbean Sea and the Atlantic Ocean. The oceanic trench, the deepest in the Atlantic, is associated with a complex transition between the Lesser Antilles subduction zone to the south and the major transform fault zone or plate boundary, which extends west between Cuba and Hispaniola through the Cayman Trough to the coast of Central America.
Kapitan Dranitsyn is a Russian icebreaker, built in Finland for the former Soviet Union. Since October 1995 she has been used as a research vessel by AARI. She also offers excursions in the Arctic Ocean north of Russia.
Kapitan Khlebnikov is a Russian icebreaker. The vessel now operates as a cruise ship offering excursions to the Arctic and Antarctic.
MV Esperanza was a ship operated by Greenpeace. Previous to being a Greenpeace ship it was a fire-fighting vessel owned by the Soviet Navy, built in 1984. It was recommissioned in 2000 and relaunched in 2002 after being named Esperanza by visitors to the Greenpeace website. It had undergone a major refit by Greenpeace to make it more environmentally friendly. A new helicopter deck and boat cranes were also added. The ship was powered by two Sulzer V12 marine diesel engines.
50 Let Pobedy is a Russian Arktika-class nuclear-powered icebreaker.
M/V Ocean Adventurer is an ice-capable expedition cruise ship operating commercial voyages to both polar regions, with Quark Expeditions of Seattle, WA, USA.
Quark Expeditions is a travel company that offers polar region expeditions aboard expedition ships and icebreakers.
Timeline of United States discoveries encompasses the breakthroughs of human thought and knowledge of new scientific findings, phenomena, places, things, and what was previously unknown to exist. From a historical standpoint, the timeline below of United States discoveries dates from the 18th century to the current 21st century, which have been achieved by discoverers who are either native-born or naturalized citizens of the United States.
NOAAS Okeanos Explorer is a converted United States Navy ship, now an exploratory vessel for the National Oceanic and Atmospheric Administration (NOAA), officially launched in 2010. Starting in 2010, NOAA entered into a five-year partnership with the San Francisco Exploratorium. The focus is on gathering scientific information about oceans for the public as well as for scientific uses. As much as 95% of the ocean remains unexplored, NOAA officials said. The ship is equipped with cameras and will provide real-time viewing of the ocean floor for scientists and for the public.
MV Lyubov Orlova was a 1976 Yugoslavia-built ice-strengthened Maria Yermolova-class cruise ship, which was primarily used for Antarctic cruises. After being taken out of service in 2010, she sat in St. John's, Newfoundland, Canada for two years. Decommissioning was fraught with problems and the ship eventually became a floating derelict in the North Atlantic Ocean in 2013. She is believed to have sunk.
Ponant is a French cruise ship operator. It was founded in April 1988 by Philippe Videau, Jean-Emmanuel Sauvé, and other officers of the French Merchant Navy and launched the first French cruise ship. The company operates eleven ships, all of which operate under the French flag.
MV Akademik Shokalskiy is an Akademik Shuleykin-class ice-strengthened ship, built in Finland in 1982 and originally used for oceanographic research. In 1998 she was fully refurbished to serve as a research ship for Arctic and Antarctic work; she is used also for expedition cruising. She is named after the Russian oceanographer Yuly Shokalsky.
MV Spirit of Chartwell is a hotel barge owned and operated by Portuguese holiday company Douro Azul for luxury cruises along the Douro river, Porto, Portugal.
Samudra Raksa is a replica ship built in 2003 based on the relief of ships in the Borobudur temple. In the late 20th century, Philip Beale, a British sailor, became interested in depictions of the ship at Borobudur and decided to reconstruct one. Aided by government and international bodies, he organized an expedition team that constructed the ship and, from 2003 to 2004, sailed it from Indonesia to Madagascar and to Ghana, proving that long-distance trade could have occurred. The Samudra Raksa Museum was constructed at Borobudur Archeological Park to house the ship, opening in 2005, and provides other displays to interpret the ancient maritime history of Indonesians.
