On Mars exists a patchwork of rectangular ridges, a mysterious feature unique to the red planet. While better and better photographs narrow down the plausible theories, we still don't know exactly what created these puzzling structures.
This well-preserved crater on Mars features evidence of mass wasting — reoccurring slope linea formation. Material is being eroded from the high-elevation crater lip, forming shifting gullies into the basin below.
Navigon's just announced a new high-end GPS unit, the 8100T, that actually displays the right terrain in its map representations. Dubbed Panorama View 3D, the system uses NASA-derived height data to accurately recreate the inclinations of the road as it crosses terrain ahead of you. The unit's also got a 4.8-inch…