The Mars Phoenix Lander worked for 151 days on the Martian surface taking photos, digging, and testing samples. Along the way, it confirmed the presence of water ice on the red planet, and discovered that Martian soil has been inundated with water in the past, leaving carbonates, nutrients, and chemicals in the soil. To say that this little guy expanded our understanding of one of our closest neighbors in the universe would be an understatement.

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