The World with the Dragon Tattoo

A serpentine shape twists across the floor and walls of a canyon on Mars, suggesting the form of a dragon snaking across a clouded sky. This image from the HiRISE camera on board the Mars Reconnaissance Orbiter shows light-colored material deposited onto the darker-toned surface, possibly through a flow of some sort, in a corner…

At Cliff’s Edge

  Martian ground slips away into Ganges Chasm, one of many deep troughs that make up the vast Valles Marineris. Valles Marineris (Mariner Valley) is the largest known canyon in the solar system, 7 times deeper than the Grand Canyon and as long as the distance from New York to Los Angeles. It slices across…