NASA's Earth Observatory has tracked down images resembling all 26 letters of the English alphabet using only NASA satellite imagery and astronaut photography. In this image, the letter 'Y' is for yardangs, elongated landforms .
Lava Tube from the Surf - Big Island, Hawaii CJ Kale Back to the Big Island! Recently we featured a close up of fresh lava HERE. Now we are bringing you a first from CJ Kale and his surf lava images. He and Nick Selway braved
Missing for 72 Years: WWII Aircraft Finally Located in Pacific