Those are all good points Humble_Scientists. I guess I haven't been to clear about the nature of the SMART-1 Mission and just what they were, and were not trying to do. So let me adress each of your points and teach you some more about SMART-1 in the process:
1) SMART-1 wasn't launched just to crash into the moon. It had been orbiting the moon for the last couple years as a surface mapper. It was only once the mission was complete that the ESA decided to crash it. They gave it the biggest downward push that they could, but with SMART's ion engine, the best they could do was about 15 ft of desent per 1 km of horizontal motion. Because SMART was falling so slowly, and the topography of the moon was so poorly understood, the scientists were not 100% certain where the impact would occur. SMART might hit an unkown mountain and crash a full orbit and dozens of kilometers off target.
Becasue the impact sight was uncertain, the only way to photograph it was to cover a large area. The photographes we have been seeing are actually blown up images of a picture about 200 km on a side. for compairison, Tycho is about 90 km wide. You can't cover an area that size with sufficient resolution to get a perfect photo. Thats why the photos are such poor quality. They have been blown up by a factor of a 4000.
2) Yes, they did intentionally choose to land in darkness. If they had landed on the day side, the brightness of the moon would outshine the flash. Also, they actually landed very close to the terminator in the hope that the crash might kick some dust up high enough to be illuminated by the sun. That didn't happen though.
3) It wouldn't do any good to have the place illuminated by the sun. The crater was only about 10 meters across. Again, that's why they landed on the night side of the moon. The explosion might not have been visible otherwise. And the crater will
certinally not be visible from Earth.
4) Your right, there is nothing in those videos that indicate it was filming what acctually happened on the moon. But something
did crash into the moon, so why bother faking it?
You can see here for a more detailed discussion of what I am saying at the bellow URL. There is also a map of where the crash took place. Note how close it is to the terrminator line.
http://www.planetary.org/news/2006/0829_SMART1_Prepares_for_Lunar.htmlKeep up the good questions everyone!