In Chandor Chasma on Mars . ... Credit Copyright: THEMIS , Mars Odyssey Team, JPL , NASA Explanation: Scroll right and dive into a spectacular canyon on Mars . This daytime infrared view , recently recorded by the THEMIS camera on board the orbiting Mars Odyssey spacecraft, covers a 30 by 175 kilometer swath running along the canyon floor. The north (left) end of the scene is poised at the edge of Candor Chasma , part of the great Valles Marineris canyon system. ... NASA Official: Jay Norris. ...