The Bruce Murray Space Image Library
Disappearing act (Phoenix sol 24)
Filed under pretty pictures, amateur image processing, Phoenix, Mars, hydrology, animation
Flipping back and forth between two color images captured on sols 20 and 24 of the Phoenix mission shows that some clods of bright material that were visible in the shadowed part of the trench on sol 20 were no longer there on sol 24. This is extremely strong evidence that the clods were, in fact, water ice, which sublimated into gas in the intervening sols.
NASA / JPL / UA / Texas A & M / animation by Emily Lakdawalla
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Original image data dated on or about June 19, 2008
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