After a decade of exploring the Martian surface, the scientists overseeing veteran rover Opportunity thought they'd seen it all. That was until a rock mysteriously 'appeared' a few feet in front of the six-wheeled rover a few days ago.
After a decade of exploring the Martian surface, the scientists overseeing veteran rover Opportunity thought they'd seen it all. That was until a rock mysteriously 'appeared' a few feet in front of the six-wheeled rover a few days ago.