Today's Image of Mars is an annotated photo of the rock Jake Matijevic, which MSL Curiosity recently examined with two different instruments. The image was taken on 21 Sep 2012, or Sol 46 of MSL's mission on Mars.
|Click to see original high resolution image from NASA.|
The purple circles represent areas where the rover's Alpha Particle X-ray Spectrometer trained its gaze. The red dots are where Curiosity's ChemCam zapped the rock with its laser and examined the chemical composition of the vapors. Understanding the chemical makeup of rocks like Jake Matijevic will give scientists a better idea of the environment in which they were created.