This is NASA InSight's second full selfie on Mars. Since taking its first selfie, the lander has removed its heat probe and seismometer from its deck, placing them on the Martian surface; a thin coating of dust now covers the spacecraft as well.
This selfie is a mosaic made up of 14 images taken on March 15 and April 11 — the 106th and 133rd Martian days, or sols, of the mission — by InSight's Instrument Deployment Camera, located on its robotic arm.
InSight's first selfie showed its instruments still on the deck. Now that they're removed, the viewer can see the spacecraft's air pressure sensor (white object in center), the tether box for its seismometer and the tether for its heat probe running across the deck. Also visible is its robotic arm and grapple.