The highest-resolution camera ever built has begun its quest to pin down the mysterious stuff that makes up nearly three-quarters of our Universe.
The Dark Energy Survey's 570-million-pixel camera will scan some 300 million galaxies in the coming five years.
The goal is to discover the nature of dark energy, which is theorised to be responsible for the ever-faster expansion of the Universe.
Its first image, taken 12 September, focussed on the Fornax galaxy cluster.
