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Mission 31

Mission 31 is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mission 31 rather than just read about it. In short: Mission 31 was an undersea expedition organized by Fabien Cousteau. It was originally scheduled for November 2013, but was delayed to June 2014.

Key takeaways

  • Mission 31 belongs to earth science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Mission 31 to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Mission 31 from memory before moving on to harder problems.

Reference excerpt

Mission 31 was an undersea expedition organized by Fabien Cousteau. It was originally scheduled for November 2013, but was delayed to June 2014. On June 1, Cousteau and six crew members descended to the undersea laboratory Aquarius in the Florida Keys. Halfway through the expedition, three of crew were replaced, as had been planned. After 31 days, Cousteau and the crew ascended on July 2. Throughout Mission 31, Cousteau's team conducted extended scuba diving expeditions to collect scientific data and IMAX footage. They hosted various one-day guests, conversed live with classrooms, and kept in touch with the outside world via social media. Cousteau estimated that his team collected the equivalent of two years' worth of surface dive data, enough for 10 scientific papers. Mission 31 was envisioned as a tribute to Cousteau's grandfather, Jacques Cousteau, who spent 30 days living underwater in 1963. Fabien Cousteau thus beat his grandfather's record for time spent underwater by a film crew by one day.

Background In 1963, French oceanographer and filmmaker Jacques Cousteau spent 30 days living underwater in Conshelf Two, in the Red Sea. The footage was turned into the Academy Award-winning film World Without Sun. Subsequently, his television show, The Undersea World of Jacques Cousteau, was seen by audiences around the world. Cousteau was one of the world's first advocates for governmental action in environmental protection and, by the time of his death in 1997, was one of the world's most famous television personalities. Jacques Cousteau's grandson, Fabien Cousteau, organized Mission 31 as a tribute to his late grandfather. The mission had two goals — to gather scientific data and to raise funds for Aquarius, an underwater laboratory located at a depth of 63 feet (19 m) below the surface, about 9 miles (14 km) south of Key Largo. Aquarius is the world's only operating undersea laboratory. Measuring 43 feet (13 m) by 9 feet (2.7 m), it holds up to six people. It is pressurized, air conditioned, and has wireless Internet access. A typical mission lasts 10 days, with the longest previous mission lasting 18 days. Aquarius is owned by the United States government's National Oceanic and Atmospheric Administration and run by Florida International University. Fabien Cousteau also hoped to break his grandfather's record for longest time spent underwater by a film crew, and draw the public's attention to environmental issues. According to Guinness World Records, the longest time anyone has spent underwater in a fixed environment at the time was 73 days 2 hours 34 minutes. This record was later broken in 2023 by Joseph Dituri.

Mission Fabien Cousteau got the idea for Mission 31 when visiting Aquarius during a fundraiser aiming to keep the laboratory operating in the wake of federal budget cuts. It was originally scheduled to take place in November 2013, fifty years after Jacques Cousteau's original mission. When the United States federal government shutdown in October 2013, Fabien Cousteau elected to postpone the mission until the spring of 2014. On June 1, 2014, Cousteau and five team members dived down to Aquarius. Joining Cousteau for the entire 31-day expedition were habitat technicians Mark "Otter" Hulsbeck and Ryan LaPete. The other three crew members — Kip Evans, Andy Shantz, and Adam Zenone — were replaced according to plan midway through the mission by Matt Ferraro, Liz Magee, and Grace C. Young. The crew included researchers from Florida International University, Northeastern University, and Massachusetts Institute of Technology. For most of the crew, including Cousteau, it was their first saturation diving experience. Periodically, they were joined by "VIP guests" for a day, including Cousteau's father, Jean-Michel and sister Céline, actor Ian Somerhalder, and marine biologist Sylvia Earle. Rapper will.i.am and businessman-explorer Richard Branson were tentatively scheduled to visit had the expedition taking place in October 2013 as originally planned. Days were spent diving to conduct experiments and gather data to study the effects of climate change and pollution on coral reefs, while the evenings were spent in Aquarius on lab work, relaxation and stress tests: Cousteau and his crew made themselves available for physiological and psychological tests to determine the effects of long-term living under the sea and without sunlight. The crew also appeared on Weather Channel broadcasts periodically. They used a sonar device that records a wide range of frequencies and a slow-motion camera to capture more thorough data and installed tiny probes, less than the width of a human hair, into the coral reef. Among the animals seen during the expedition were eels, mantis shrimp, octopus, plankton, porkfish, snook, sponges, spotted eagle rays, starfish, tarpon, and various reef sharks. The crew also observed an Atlantic goliath grouper attack a barracuda, a scene which Shantz described as "something I never imagined happening". Mission 31 was broadcast live 24 hours a day via the Internet, although the cameras were occasionally turned off to give the divers some privacy. Filming was done with sonar cameras to avoid disturbing the underwater life with artificial light. Team members were able to conduct live lectures for students and interact with the public through social media. The team primarily ate "astronaut-type food", as the limited space did not allow for ordinary food. Early in the expedition, the air conditioning in Aquarius broke, leading to 95 °F (35 °C) temperatures at 95% humidity until it could be fixed. As they were undergoing 16 hours of decompression before resurfacing, the Mission 31 crew watched World Without Sun.

Funding Mission 31 cost an estimated US$1.8 million. It was paid for through corporate sponsorship and private donations, including a crowdfunding campaign on Indiegogo. Swiss watchmaker Doxa sold a Mission-31 dive watch for $2,890, with 25% of the funds going to the expedition. Aquarius cost $15,000 a day to operate; the rest of the funds went to pay for equipment.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Mission 31

Start with the simplest possible case. Write down what Mission 31 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mission 31 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mission 31 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mission 31

In research
Mission 31 appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Mission 31 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Mission 31 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2014 in science, Jacques Cousteau, Oceanographic expeditions, so understanding it makes those chapters shorter.
In everyday life
Look for Mission 31 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Mission 31 in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Mission 31 means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Mission 31 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mission 31 in simple terms?

Mission 31 was an undersea expedition organized by Fabien Cousteau. It was originally scheduled for November 2013, but was delayed to June 2014.

Why does Mission 31 matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mission 31?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mission 31.

Tags

  • 2014 in science
  • Jacques Cousteau
  • Oceanographic expeditions
  • Scientific diving

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