<p>The first use of social media from another planet owes its origin not to a human, but to NASA's $2.5 billion Mars Curiosity rover.</p><p>Last Wednesday the rover, in the midst of its second month of a two-year exploratory mission on Mars, listed its location for the first time on the social media platform Foursquare.</p><p>The so-called check-in is an example of a co-evolution between social media and space exploration.</p><p>Video from around the world</p><p><a href="http://www.thestate.com/2012/10/09/2474162/mars-rover-curiosity-checks-in.html">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.whittierdailynews.com/news/ci_21715632/curiosity-rover-becomes-foursquare-mayor-mars">Curiosity rover becomes Foursquare mayor on Mars</a> (Whittier Daily News)</p><p><a href="http://www.sentinelsource.com/news/national_world/rover-gets-to-play-in-sandbox-on-mars-give-gizmos/article_7f5e6dd9-931f-5a8b-843c-b8200d2bfb21.html">Rover gets to play in &#039;sandbox&#039; on Mars, give gizmos a test</a> (The Keene Sentinel)</p><p><a href="http://www.gizmag.com/curiosity-soil-sample-preparations/24453/">Curiosity prepares for first soil sample</a> (Gizmag)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dF9a5rhR58jlIuMbKIIZFZm8Q7DLM&ned=us">321 additional articles.</a></p>