I was just thinking as I was staring up at the night sky, wouldn't it be awesome to have shooting stars at night.

I wouldn't have thought it would be that difficult to achieve, but the effect would really add to what is already an amazing night sky.

Also not sure if this is in already, i haven't noticed but maybe it is, but phases of the moon(s) would be really cool. It actually probably is in, I know i saw a cresent moon today during the day, so i doubt they would have a cresent unless they can make it go through the full range of phases.

Shooting Stars will almost cerrtainly be possible to mod in- there is an existing mod for Oblivion (which is as brilliant as you would hope it would be!)-

http://www.tesnexus.com/downloads/file.php?id=35593

So I would think it can be made to work for Skyrim? But I'm no modder so I don't know; maybe you could contact the creator of the mod for Oblivion?