Screenshot of the Russian spam site o-o-6–o-o.com.
A puffy monitor, representing virtual memory in Mac OS 8 settings, enlarged and cleaned up via Vectronic’s Apple World.
Image by Henri Becquerel, created by placing radioactive materials on a photographic plate, 1903. Via Wikipedia user Thangalin.
A dune on Mars, captured by NASA and posted on Lori Fenton’s great blog – her description of the image:
“A piece of Mars: A single dune sits on the surface of Mars, not too far from the north pole. It’s early spring, but this far north the dune is still covered in white CO2 frost (as well as a thin yellow layer of airfall dust). But the sun has done some work already: the dark spots are areas where enough frost is gone from the warm sun’s rays, revealing the lovely black sand beneath. Before long the frost will be gone and the dark dune will be fully released from its wintery blanket. (ESP_033729_2565, NASA/JPL/Univ. of Arizona)”