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High resolution image of Mars rover Curiosity as taken by the rover's robotic arm-mounted camera. | NASA/JPL-Caltech
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Year One: Mars Rover Curiosity's Key Discoveries

NASA's Mars Science Laboratory landed on Mars a year ago today -- what are some of the key discoveries to come from the one-ton rover just 12 months into its potential multi-year mission?

August 5, 2013
2:40 PM EDT
A selection from the panorama of Gale Crater as taken by Curiosity on Aug. 8, 2012. | NASA/JPL-Caltech
The Jake Matijevic rock, one of the rover Curiosity's first targets of study, has a history that more closely resembles some rocks on Earth than previously studied rocks on Mars. | NASA/JPL-Caltech
The first analysis of X-ray diffraction on Martian soil by the Chemistry and Mineralogy (CheMin) experiment. The soil sample, taken from a wind-blown deposit within Gale Crater, where the rover landed, is similar to volcanic soils in Hawaii. | NASA/JPL-Caltech
A photograph of an area near Curiosity at Bradbury Landing showing layered deposits of conglomerate material, a strong indication that a river used to flow here. | NASA/JPL-Caltech
This image of an outcrop at the "Sheepbed" locality, taken by NASA's Curiosity Mars rover with its right Mast Camera (Mastcam), shows show well-defined veins filled with whitish minerals, interpreted as calcium sulfate. | NASA/JPL-Caltech
Mars' atmosphere from orbit. | NASA
Mars' moon Phobos eclipses the sun from Curiosity's vantage point. | NASA/JPL-Caltech
Artist's impression of humans on Mars. | Pat Rawlings/NASA
Curiosity looks down at its filled scoop... plus a mystery object on the ground. | NASA/JPL-Caltech