This week, scientists officially bid adieu to the Phoenix Mars Lander, which has been working as a robotic geologist and searching for evidence of life-friendly environments since its May 25 landing on the Martian northern plain. Above is a lander photograph of patches of what, thanks to data the lander collected, was shown to be water ice just below the soil surface. Full story. Credit: Marco Di Lorenzo, Kenneth Kremer, Phoenix Mission, NASA, JPL, UA, Max Planck Inst., Spaceflight

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Found in: Atom & Cosmos and Planetary Science