Maven is on a mission to study Mars' upper atmosphere and how it influences the planet's climate and potential habitability.
The unusual selfie comes from the spacecraft's Imaging Ultraviolet Spectrograph (IUVS) instrument, which is usually looking at the planet's atmosphere. It's mounted on a boom arm that NASA says can act like a selfie stick. The picture shows "ultraviolet wavelengths of sunlight reflected off of components of the spacecraft."
NASA had to stitch together 21 different images to make the final image, which marks the spacecraft's arrival in Mars orbit on Sept. 21, 2014. The space agency also drew in some lines to show how the visible parts of Maven connect to each other.