The Phoenix Mars Lander landed yesterday. It has been spinning up its systems for 15 hours now. Initial photos are coming in. There's already excitement about a "polar bear" in one image. This is likely a artifact of a low resolution image, but nobody knows what it is... yet.
Right along the horizon, toward the right of middle is a small white spec that, given the distance, is probably bigger than a pixel. Still, the spec could be dust on the lens, an error in compression, or an approaching polar bear. It's hard to really say.