Rebecca Horne, the Photo Editor at Discover Magazine, has a fascinating blog at Discover called Visual Science. Recently she posted a story about my latest petroglyph carving in Montana of the Chandra X-ray observatory.

More space petroglyphs are at Petroglyphist.com.

Besides Chandra in Montana there are two tractors (one with seeder drill), three pickups (pictographs), a water truck, an antelope (one was shot on the land while I was there), a double portrait of the original Czech homesteaders, and a cowboy with two cows.