What a decade of Curiosity has taught us about life on Mars

A self-portrait of NASA's Curiosity Mars rover on Vera Rubin Ridge. (AP)

Ten years ago, engineers at NASA's Jet Propulsion Lab celebrated the successful landing of its fourth robot on Mars, The Curiosity rover.

Now old enough to enter the fifth grade, the Curiosity rover was set on its mission in 2012 to determine whether the red planet could have ever supported life.