Measuring the state of our seas and oceans was traditionally the realm of ships, but now satellites could look beneath the waves in an unprecedented way.
Europe's latest pollution spotting satellite can highlight a wide range of pollutants in the atmosphere, and track where they came from.
When it comes to human rights violations, it is often the weakest members of our society who are hardest hit. This is especially true for those who have no one representing their rights on their side. Using the latest technology, satellites can now be used to detect crimes.