The Phoenix Mars Lander has landed safely near the north pole of Mars and has already started returning photos. What's more, it may have already spotted some ice according to a Science News article (see also the NASA new release). The bad news is that the robot seems to have developed a short circuit. According to an AP report, the short isn't considered serious and NASA scientists believe they can work around the problem. The robot is loaded with sensors including an arm camera, a stereo imager, a microscopic imager, meteorological sensors, and electrochemistry sensors. For a nice overview of the Phoenix mission, see the recent Nature article.