The Red Planet's dusty atmosphere will probably obscure any window-seat vistas of its deep valleys and soaring mesas. "The best way to see the planet's surface would be to take a digital image and enhance it on your computer," says planetary geologist Alfred McEwen, principle investigator on NASA's High Resolution Imaging Science Experiment. He would know: In the past 12 years, the powerful HiRISE camera has snapped 50,000 spectacular, high-resolution stereo images of the Martian terrain from the planet's orbit, creating anaglyphs that anyone can view in 3D using special glasses. The highly detailed stereograms depict the planet's surface in remarkable detail—but 3D glasses aren't always handy, and still images can only convey so much about Mars' varied topography.
To fully appreciate the Martian landscape, one needs dimension and movement.