Natural-colour image of the oil slick just off the <a href="//commons.wikimedia.org/wiki/Louisiana" title="Louisiana">Louisiana</a> coast. The oil slick appears as dull <a href="//commons.wikimedia.org/wiki/Category:Gray" title="Category:Gray">grey</a> interlocking comma shapes, one opaque and the other nearly transparent. The north-western tip of the oil slick almost touches the Mississippi Delta. Sun-glint, the mirror-like reflection of the <a href="//commons.wikimedia.org/wiki/Sun" title="Sun">Sun</a> off the <a href="//commons.wikimedia.org/wiki/Water" title="Water">water</a>—enhances the oil slick’s visibility.
Jesse Allen
2010-04-30
<a rel="nofollow" class="external text" href="http://earthobservatory.nasa.gov/IOTD/view.php?id=43846">NASA Earth Observatory</a>