The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
Find out more about space activities in our 23 Member States, and understand how ESA works together with their national agencies, institutions and organisations.
Exploring our Solar System and unlocking the secrets of the Universe
Go to topicProtecting life and infrastructure on Earth and in orbit
Go to topicUsing space to benefit citizens and meet future challenges on Earth
Go to topicMaking space accessible and developing the technologies for the future
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Sun glitter reveals elegant features in this image which was captured by Sentinel-2A off Western Australia. Signatures of internal waves, surface-wind wave can be seen clearly, as well as the ghostly pattern of wave–current interactions that appear as darker swirls and eddy structures. The rigid straight line running roughly north–south in the left of the image marks a Sentinel-2A detector boundary and shows a different intensity of Sun glitter. This is because the detector is physically offset from the adjacent detector, introducing a change in geometry. This feature is exploited in Sun-glitter imagery to determine wave spectrum information.