. . . . . "Mars landing"@en . "A Mars landing is a landing of a spacecraft on the surface of Mars. Of multiple attempted Mars landings by robotic, unmanned spacecraft, seven were successful. There have also been studies for a possible human mission to Mars, including a landing, but none have been attempted."@en . . . . . . "A Mars landing is a landing of a spacecraft on the surface of Mars. Of multiple attempted Mars landings by robotic, unmanned spacecraft, seven were successful. There have also been studies for a possible human mission to Mars, including a landing, but none have been attempted."@en . .