Mars Exploration Rover, either of a pair of U.S. robotic vehicles that explored the surface of Mars from January 2004 to June 2018. One rover, Opportunity, lasted 14 years and covered 45 km (28 miles), which were records for time spent and distance driven on another planet.
MailOnline has put together a selection of images from Earth and beyond to test your knowledge about whether you're looking at our world or the likes of Mars, Venus or dwarf planet Pluto.
Mars Exploration Rover, either of a pair of U.S. robotic vehicles that explored the surface of Mars from January 2004 to June 2018. One rover, Opportunity, lasted 14 years and covered 45 km (28 miles), which were records for time spent and distance driven on another planet.