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Follow mission news or learn about exciting new discoveries from NASA centers and research partners.

  • Martian Landscape Actively Changing

    Martian Landscape Actively Changing

    Feb. 7, 2011

    Sand dunes in a vast area of northern Mars long thought to be frozen in time are changing with both sudden and gradual motions, according to research using images from the Mars Reconnaissance Orbiter.

  • First Ever STEREO Images of the Entire Sun

    First Ever STEREO Images of the Entire Sun

    Feb. 7, 2011

    On Feb. 6th, NASA's twin STEREO probes moved into position on opposite sides of the sun, and they are now beaming back uninterrupted images of the entire star—front and back.