More than 8 years after its arrival, the Opportunity rover takes a self-portrait of sorts on the surface of Mars
  • NASA/JPL-Caltech/Cornell/Arizona State University

Eight years later, I'm not sure what's more amazing, that we're getting such stunning images from the surface of Mars, or that the Opportunity rover is still sending these stunning photos after more than eight years of operation? NASA has earned its fair share of criticism over the years, but damn we got our money's worth out of this particular piece of equipment.