In the Aspiring authors thread we were talking about "sounds in space" and the topic wandered to lasers, and how you can't see them until they hit something. I was doing some research about that when I came across this url: Powerful laser is 'brightest light in the universe' - space - 09 April 2008 - New Scientist Space They say it produces light more powerful than anything in the universe since the time of the "big bang" which is quite a claim. It only lasts for "one-tenth of a trillionth of a second", so that's obviously part of how they get away with it. What does anybody think? Also, I was wondering if the reason you can't see lasers like you can a flashlight is because it's considered "coherent" light, but I can't find a direct answer to that. - Z.