It doesn't look good. Scientists are still analyzing the images sent back by the Mars Reconaissance Orbiter as it tried to find its companion, the Mars Global Surveyor, but there doesn't seem to have been any "definitive sighting." Emily at The Planetary Society isn't willing to write off the MGS just yet -- there is still an effort underway to relay a signal from the MGS through the Opportunity rover down on the planet's surface. However, a number of space-related blogs and websites are already writing eulogies for the missing probe. This one includes a cool photo taken by the MGS in its salad days, as well as a good list of the mission's highlights.