The Shadow of Phobos . ... Credit Copyright: Malin Space Science Systems , MGS , JPL , NASA Explanation: Hurtling through space above the Red Planet, potato-shaped Phobos completes an orbit of Mars in less than eight hours. ... The area imaged is about 250 kilometers across and is seen in panels from left to right as red filter, blue filter, and combined color composite views from the MGS wide-angle camera system. ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ...