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UA's HiRISE camera finds Mars' ice cap fluctuations

These eight-tenths-of-a-mile sections photographed by the HiRISE camera show, from left, early spring, when the ground is covered by a seasonal layer of dry ice about 2 feet thick; and later spring, when the ice cracks, releasing dark sand from the dune below. When pressurized gas trapped be…

January 27, 2013 12:00 am Comments

UA's HiRISE camera finds Mars' ice cap fluctuations

Our new understanding of the ever-changing topography of Mars came into full focus in the last week with the release of three scientific papers and dozens of images by the University of Arizona's HiRISE camera team.

January 27, 2013 12:00 am Comments

Bold plan goes for asteroid 'gold'

There may be space rocks loaded with platinum and gold, but mundane elements may be the real moneymakers in space, said Mark Sykes, CEO and director of the Tucson-based Planetary Science Institute.

April 25, 2012 12:00 am Comments