NASA has lost contact with a spacecraft that has orbited Mars for more than a decade. Maven, an acronym for Mars Atmosphere and Volatile Evolution, abruptly stopped communicating with ground stations on Dec. 6. NASA said this week that it was working fine before it went behind the red planet. When it reappeared, there was only silence. | CBS News

Take a tour of life aboard the International Space Station! Join NASA astronauts Nicole Mann and Kjell Lindgren as they guide you through station in celebration of 25 years of continuous human presence aboard the orbiting lab. 🎥 Watch the full tour: https://youtu.be/D9gUhAOQ0O4 | International Space Station