From MSNBC:
Now that the storm has passed, Earth-imaging satellites are getting a better fix on the damage caused by Hurricane Katrina. The QuickBird satellite, operated by Colorado-based DigitalGlobe, got a clear shot of New Orleans on Wednesday and posted before-and-after views on its Web site. QuickBird’s “after” view, captured from a 280-mile-high (450-kilometer-high), sun-synchronous polar orbit, shows dark floodwaters over highways and even the downtown golf course, as well as the water surrounding the Louisiana Superdome. We’ve created an interactive viewer that labels the landmarks and lets you switch quickly between the before and after views.
More here.