This is the first laser spectrum from the 'Chemistry and Camera' (ChemCam) instrument on NASA's Curiosity rover.
Graphs like this are created when the rover zaps a rocks with its laser and uses spectrometers to analyse the gases that are emitted and detect different elements present in the rock.
NASA's Mars rover Curiosity beamed Will.i.am's new song, Reach for the Stars, to earth.
The Black Eyed Peas rapper will debut his latest single Reach For The Stars on Mars tonight.
NASA has named the spot where its Curiosity rover landed on Mars 'Bradbury Landing' after the celebrated science-fiction author Ray Bradbury