I can calculate the motions of the heavenly bodies, but not the madness of people

— Sir Isaac Newton

Visible

Darn I missed it!

I was busy in Michigan this week...didn't notice the big glow in the sky LOL...

But here's a several billion year old gamma burst that occured well before the Earth existed!

http://science.nasa.gov/headlines/y2008/21mar_nakedeye.htm?list880574