darth_ender said:

It's a plot hole that a space station the size of a small moon could create a laser beam so powerful that it could destroy a planet and send its pieces flying at such tremendous speeds as to not only overcome the gravity of that planet, but in fact zoom away from that planet at such speeds.

http://www.theforce.net/swtc/ds/index.html#superlaser

The lasers even paused as they joined together at different times, firing outwardly only when all were caught up. I hope you'll fix this whole mess. It's not realistic at all. In fact, I hope you will show Alderaan blowing apart over the course of a few days, as is more realistic.

Also there is no sound in space. I hope you will remove all sound effects.

But should you choose to keep them, please at least make a realistic lapse between sight and sound. Remember, sound travels much slower. Again, looking at Alderaan, since we were thousands of miles away when it exploded, we shouldn't have heard anything for hours and hours. Can't you straighten these issues out, please?

Although I like the idea of a very realistic Star Wars practically every other Sci-Fi film uses sound in space. Coming into the movie the viewer typically knows this and doesn't mind it. I wouldn't consider the sounds in space something to correct but rather a well loved part of Star Wars and something that would detract from rather than enhance or correct the film. I do like the idea of slowing down the Alderaan destruction. Maybe not to a day but I have found longer fan made sequences online which would fit much better than an instant explosion.