Around 95% of the Earth's oceans are still unexplored - in fact, we know less about the deep sea than we do about space.
Exploring and studying the oceans is critical to protect these valuable resources for future generations.
Running until late 2018, events will include special After Hours evenings, an oceans-themed Science Uncovered night, and the Annual Science Lecture.
Explore more about why we need to protect the oceans, find themed events, and read about the pioneering work of the Museum's marine scientists.
Explore our marine science
Researchers have found seven new animal species living 3,000 metres under the ocean's surface.
Body size research led by Museum palaeontologists could help predict the impact of our rapidly changing climate.
Dr Bruno Simões tells us how he pursued sea snakes from the mangroves to the open ocean to learn about their vision.
Explore the UK coastline and submit your seaweed observations to help vital marine research.
Help digitise data about some of the world's smallest fossils.
Report stranded whales, dolphins and porpoises to support UK marine mammal research.