NASA's rover Curiosity has checked-in on Mars - using the mobile application Foursquare.
The rover is the first to check-in on another planet, allowing users of the app to follow the rover's whereabouts and see photos taken while it explores the Red Planet.
David Weaver, associate administrator for communications at NASA Headquarters in Washington, said the use of Foursquare will "help to involve the public with the mission and give them a sense of the rover's travels through Gale Crater".
The use of Foursquare is the latest move by NASA to engage social media with the Mars rovers mission. The rover also has Twitter and Facebook accounts.
NASA hoped Curiosity's use of Foursquare would "generate an interest in science, technology, engineering and mathematics".