ESA's Euclid mission is designed to help us uncover the great cosmic mystery of dark matter and dark energy. The space telescope will observe more than a third of the sky with unprecedented sensitivity and accuracy. It will chart the shape, position and movement of billions of galaxies out to 10 billion light-years to create the largest, most accurate 3D map of the Universe across space and time.
This will reveal how matter is distributed across immense distances and how the expansion of the Universe has evolved over cosmic history, enabling scientists to pin down the properties of dark energy and dark matter and uncover their elusive nature.
Find out more about Euclid in ESA's launch kit
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