They have not heard from the British Mars explorer, Beagle II, yet. It should have landed about 9:00 PM Christmas eve.

If they don't hear anything by January 3 the mission will have been a failure. That is when the mother ship that is orbiting Mars will leave orbit and begin its mission.

An interesting fact I heard on the news is that the radio on Beagle II is about as strong as a cell phone! Only 5 watts.