In March 2006 the Mars Reconnaissance Mission was launched to survey the Martian surface. Onboard, the hi-resolution HiRise camera which is the most powerful camera ever sent to another planet. To date, HiRise has sent back more than 9,000 images, the pictures are in such great detail, scientists are now able to understand features on Mars that were once a mystery.

Visit the HiRise site to view a gallery of the most detailed images yet of Mars.

Small Crater on Arcuate Ridge
Small Crater on Arcuate Ridge West of Olympia Mensae (PSP_009717_2545)
This image features arcuate ridges in the high northern plains. It has been suggested that arcuate ridges were formed by ancient glaciers on Mars.
Credit: NASA/JPL/University of Arizona

Sand Slide
Sand Slide (PSP_010546_2615)
Sand dunes are found in numerous locales on Mars. These dunes are in the north polar region. High latitude dunes are covered seasonally with carbon dioxide frost (dry ice).
Credit: NASA/JPL/University of Arizona