(CNN) — Here’s a look at the exploration of Mars. The United States, Soviet Union and China are the only three countries to land a spacecraft on Mars. There have been nine successful US Mars landings: ...

NASA is quietly laying the groundwork for a new generation of robots that will not just survive on Mars, but move, scout and deliver science in ways today’s rovers cannot. The Science Transport & ...

NASA has set its sights on sending astronauts to Mars sooner than most people realize. The ambitious plans include preparing for crewed missions in the coming decades, with a focus on technology, ...