14 May 2010 COSMO-SkyMed radar satellite image, May 14, 2010. Image courtesy CSTARS.   13 May 2010 COSMO-SkyMed radar image (black-and-white) superimposed on cloudy br /NASA / MODIS image. Both images taken May 13, 2010. Radar image courtesybr / CSTARS. SkyTruth

The COSMO-SkyMed radar image taken yesterday is somewhat ominous – it shows nearly all of the slick from the ongoing Deepwater Horizon oil spill, and at 4,922 square miles (12,748 km2) it’s significantly larger than it appeared on May 13.

BP / Gulf oil spill – Slick getting bigger?