NASA's MAVEN mission launched in November 2013 to study Mars' upper atmosphere, ionosphere, and interactions with the solar wind.
NASA ended the Mars Atmosphere and Volatile Evolution (MAVEN) mission after losing contact with the spacecraft in December.
NASA’s MAVEN mission was launched on an Atlas V in 2013.
The MAVEN mission was designed to study the Martian upper atmosphere, ionosphere, and interactions with the sun and solar wind.