The Euclid mission, will soon begin capturing faint light from the early universe to help illuminate the dark Universe. The spacecraft’s instruments will capture light that has been travelling for 10 billion years and it will then need to transmit an unprecedented volume of data back to Earth – 100 GB every day for six years. It’s taken a lot of time, effort and ingenuity, but ESA’s ground segment is ready to receive all that data.

For more details, see this ESA news story.