The Deepwater Horizon offshore oil drilling platform that suffered a catastrophic explosion and collapsed last week has begun leaking oil, covering an area of over 1800 square miles (~4670 km2). NASA has some images of the spill taken from the Moderate Resolution Imaging Spectroradiometer module on-board their AQUA satellite and the Advanced Land Imager on EO-1. Click for larger versions.
[UPDATE: The European Space Agency has imaging from satellites as well:
Click to enlarge.]