https://ift.tt/2wwdHAe Learning With: ‘NASA’s Mars Rover Opportunity Concludes a 15-Year Mission’ What can we learn from the longest-lived robot on another planet’s surface? JEREMY ENGLE https://ift.tt/2GC7FCg February 20, 2019 at 05:30AM

By JEREMY ENGLE from NYT The Learning Network https://ift.tt/2NgBWqX