Curiosity (rover) the passion that drives us through our everyday lives." On August 6, 2013, "Curiosity" audibly played "Happy Birthday to You" in honor of the one Earth year mark of its Martian landing, the first time for a song to be played on another planet. This was also the first time music was transmitted between two planets. On June 24, 2014, "Curiosity" completed a Martian year—687 Earth days—after finding that Mars once had environmental conditions favorable for microbial life. "Curiosity" will serve as the basis for the design of the Mars 2020 rover mission that is presently planned to be launched
When We Left Earth: The NASA Missions When We Left Earth: The NASA Missions When We Left Earth: The NASA Missions (or NASA's Greatest Missions: When We Left Earth in the UK) is a Discovery Channel HD documentary miniseries consisting of six episodes documenting American human spaceflight, spanning from the first Mercury flights through the Gemini program to the Apollo moon landings, the Space Shuttle, and the construction of the International Space Station. It was created in association with NASA to commemorate the agency's fiftieth anniversary in 2008. It first aired on June 8, 2008, and concluded on June 22. Each airing consisted of two hour-long episodes.