The Independent: The most powerful camera that has ever been used to survey another planet is capturing spectacular pictures of the surface of Mars to reveal a rich tapestry of geological features.Located on board the Mars Reconnaissance Orbiter, a Nasa probe launched in 2005, the HiRise camera has already taken detailed images of the outlines of ancient extra-terrestrial seas and rivers—the first unambiguous evidence that shorelines once existed on the Red Planet.
Credit: NASA/JPL/University of ArizonaThe camera has also witnessed in high-resolution detail the moment when the warmth of the Martian spring forced puffs of dust through the thin polar caps of dry ice—solid carbon dioxide—to form weird “starburst” patterns on the surface of the planet.
Photo: Sulfate and Clay Strata in Gale CraterCredit: NASA/JPL/University of Arizona"Spring on Mars is quite different from spring on Earth because Mars has not just permanent ice caps, but also seasonal polar caps of carbon dioxide,” said Candice Hansen-Koharcheck, of Nasa’s Jet Propulsion Laboratory in Pasadena, California.
