My point was that there has never been any proper proof of there being either water or heavy hater on comets only hydroxyl (OH) in the coma. There are several ways the hydroxyl could have gotten there, so you cant say there has to be water in the comet core for there to be hydroxyl in the coma.

The press release should have said: The comet is dry as bone, Earth water must have come from somewhere else.

So far no water ice has been found and the pictures shows a completely dry hard rock. That they keep calling it an "Ice mountain" is just crazy. There is no proof that there is ice on a comet. Only that there is hydroxyl in the coma. Saying "We know of no other way for there to be hydroxyl in the coma without there being ice in the comet" is just bad science. Especially when there have been lab experiments showing how hydroxyl can be created from silica rock hit by protons (solar wind)

Its a big understatement to say that they "tend to be smothered or distorted by travel through water". They don't travel through water.

If you want good pictures of children. It is really only one thing that is important and that is the delay from pressing the button to taking the picture.

I got a D40 from Nikon just when they released it four years ago and have gotten tons of great pictures with it.

It has a rather small sensor and not that many functions, but the shutter delay is measured in milliseconds.