On March 3, 2008 photographs of an avalanche on the planet Mars were released from NASA. The photos were taken from NASA's orbiting HiRISE camera and revealed billowing clouds of dust at the base of a tall slope where ice and dust fell.

1. First person to notice avalanches was Ingrid Daubar Spitale of the University of Arizona, Tucson
2. The cause of the avalanche is still unknown
3. Scientists suspect more ice than dust fell with the avalanche
4. The water from the ice that broke loose is expected to change from solid to gas substance

• Gizmodo.com: "Reconnaissance Orbiter Captures Live North Pole Avalanche on Mars" (March 3, 2008)

• CosmicVariance.com: "Avalanche on Mars!" (March 3, 2008)

• HiRISE: "Caught in Action: Avalanches on North Polar Scarps: (March 3, 2008)

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