NASA’s Opportunity rover captured spectacular views of Mars
Revolutions are explosions of frustration and rage that build over time, sometimes over decades. Although their political roots are deep, it is often a single spark that ignites them — an assassination, perhaps, or one selfless act of defiance.
Feb. 26, 2011A protester wearing a Tunisian flag makes his way past closed shops in the casbah toward sporadic gunfire in Tunis. Tunisia's revolution set off other protest movements across the Middle East.Nikki Kahn/The Washington Post
NASA tried one last time to contact its record-setting Mars rover Opportunity, but declared it dead on Feb. 13, 2019, 15 years after arriving at the Red Planet. The solar-powered rover has been silent for eight months, victim of one of the most intense dust storms in decades.