Which lander provided direct confirmation of near-surface water ice by uncovering it at a northern latitude in 2008?

Answer

Phoenix lander

The Phoenix lander, operating at 68 degrees north latitude, scraped away surface dirt and uncovered whitish water ice. This ice immediately sublimated upon exposure to the thin atmosphere and sunlight.

Which lander provided direct confirmation of near-surface water ice by uncovering it at a northern latitude in 2008?
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