The National Oceanography Centre in Southampton is a really big building where lots of clever people study the oceans that cover most of the Earth. Oceans are like huge pools of water that are full of different kinds of sea creatures, plants and even volcanoes! Scientists at the centre use really cool equipment like big boats and underwater robots to explore the deepest and darkest parts of the oceans.
They also test the water to make sure it's not getting too dirty, and they look at things like the temperature and saltiness of the water to see how the oceans are changing. It's really important work because the oceans are super important to our planet and lots of the creatures that live in them.
When the scientists find out new things about the oceans, they share that information with other clever people all over the world so that everyone can learn more about the oceans!