This is the category for the University of Arizona, in Tucson, Arizona.

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• 1 October 2015: NASA announces water on Mars
• 13 January 2011: US President Barack Obama speaks at memorial for Arizona shooting victims
• 12 November 2008: NASA calls end to Mars Phoenix mission
• 4 October 2008: Study estimates first human HIV infection 100 years ago
• 22 June 2008: Phoenix lander confirms presence of water ice on Mars
• 20 June 2008: NASA: White substance photographed by Phoenix lander on Mars ‘must have been ice’
• 11 June 2008: NASA’s Phoenix Lander has an oven full of Martian soil
• 1 June 2008: NASA says Phoenix spacecraft may have landed on ice
• 1 April 2008: Peruvian necklace identified as oldest gold artifact in the Americas
• 19 March 2008: Hubble detects methane on distant planet

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Main library of the University of Arizona. Image: Msr69er.