The Baltic Sea Centre hosts Stockholm University's marine infrastructure resources for everyone who wants to conduct research and education in the Baltic Proper. Our research station, the Askö laboratory, is located in the Trosa archipelago. This is where much of the knowledge we have today about the Baltic Sea comes from and where our state-of-the-art research vessel Electra af Askö, has its home port. We also support several national and regional marine environmental monitoring programmes with infrastructure, sampling and by making the data available via reports and websites. The monitoring data from Askö are among the oldest time series in the world.