Tantibus is Latin for nightmare. This image does appear to be a creepy, foggy, haunted scene. But there is nothing to worry about—it is just science data. The elevation data shown here, recorded by space shuttle Endeavour in 2000, are from the Rocky Mountains of Utah and Colorado. Dark areas are low elevation, and the brightest spots are the highest elevations, here representing mountaintops.
Source: Shuttle Radar Topography Mission