From NASA:
NASA’s Mars Phoenix Lander can be seen parachuting down to Mars, in this image captured by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter. This is the first time that a spacecraft has imaged the final descent of another spacecraft onto a planetary body.
One of the most beautiful, compelling and hopeful images I have ever seen – up there with the Apollo earthrise photographs. We can do this, we can send a robot millions of miles and then take a picture of it using another robot we sent a while back.