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Happy Tenth Anniversary, Opportunity

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Opportunity RoverTen years might not seem old, but for a rover that was only meant to conduct a three-month-long mission, a decade is milestone most scientists thought the Mars exploration rover Opportunity would never see.

Opportunity launched in July of 2003 and landed on Mars on January 25, 2004, three weeks behind its twin rover, Spirit. NASA sent the two rovers to kick off a long-term robotic exploration on Mars, largely focused on gathering information that would shed light on the presence of water on the Red Planet. NASA chose two sites on either side of the planet, both of which were thought to have contained large quantities of water at some point in the past. Spirit landed on January 3, 2004 in Gusev Crater, which may have housed a lake long ago, and Opportunity landed in the mineral deposits of Meridiani Planum.