Envisat’s ASAR reveals extent of massive oil spill off Spanish coast   Envisat's ASAR image acquired 17 November 2002 shows a double-headed oil spill originating from the stricken Prestige tanker, lying 100 km off the Spanish coast.   Envisat's ASAR image, acquired on 17 November 2002, of the oil spill from the tanker, Prestige, 100 km off the Spanish coast.   ASAR image shows tanker, Prestige, 100 km off the Spanish coast   Part of an oil slick of several kilometers follows the stricken Bahamas-flagged Prestige oil tanker, second top right, that is loaded with 77,000 metric tons, 85,000 US tons, of fuel oil, as it is towed away from the northwestern coast of Spain near Muxia by two tugboats to avoid a environmental catastrophe Friday Nov. 15, 2002, after the ship sprang a leak in a storm Wednesday   Two people walk accross the Barranan beach covered with oil in Arteixo, northwestern Spain, Sunday Nov. 17, 2002 after oil spilled from the Bahamas-flagged tanker 'Prestige' washed ashore Saturday. The tanker, that is in danger of splitting in two, has been towed out to sea to avoid an environmental catastrophe. Release date: 22 June 2004