We tend to think of blogs that showcase large images as a phenomenon of the past few years. But NASA's Earth Observatory has been posting its Image of the Day since April 1999 (when its first "large" image available for download was a 214 KB jpeg of the North Pole). Now, Image of the Day has downloads of images in multiple formats, most of which measure in megabytes, not kilobytes, and these stunning images of the earth's surface give context to the human activity down below: a toxic spill in Hungary, wildfires in Mexico, the growth of a coal mine in West Virginia, agriculture in Brazil, snowmelt flooding in Fargo, North Dakota, last year's oil spill in the Gulf of Mexico, artificial islands in Dubai, the aftermath of Japan's recent tsunami.
Satellite images reveal shrimp trawlers' turbulent trails. Vessels turn firm sea bottoms into ooze, destroying habitats. [Via Gristmill.]
The Mysterious Holes of Peru. While the world is generally familiar with Machu Picchu and the Nazca Lines, another mystery has come to light through the modern science of satellite photography.
The giant spiraling hole in the ground near Mirny, Russia in Siberia is perhaps the world's largest open pit diamond mine. More giant holes.
Google Globetrotting. Play armchair traveler or spot-the-anomaly with thousands of Google Maps satellite photos!
Cool satellite images of suspected terrorist camps in Afghanistan. I don't know about the commentary, but the pics are cool.