Hey, it just so turns out that "NASA has detected the brightest cosmic explosion ever recorded -- a massive burst of energy 7.5 billion light years away that could be seen with the naked eye from Earth" on the same day that Arthur C. Clarke passed away.
That seems a pretty fitting tribute. Here's the news article:
http://news.yahoo.com/s/afp/20080321...qyaZ5hsGlxieAA