The clarity of the images was astonishing - laying bare everything from the spindly grey-brown chimneys, rising at crooked angles, to the violent pitch-black jets of superheated water to the ghostly swarms of blind shrimp.

BBC: A deep sea mission of genuine exploration

Pasted on the outside of nine tall white panels, some walled at right angles to form squares, are large black-and-white images of incongruous and somewhat inscrutable things, including the front of a camera and two men conversing.

WSJ: Light Years: Conceptual Art and the Photograph, 1964-1977 | Snapshot of a Movement | By Richard B. Woodward