Via Yahoo! News:
Polish author Stanislaw Lem, one of the world's leading science-fiction writers, died on Monday in his home city of Krakow at the age of 84 after a battle with heart disease...Technorati Tags: stanislaw lem, science fiction, obituaries
Lem, born on September 12, 1921 in what is now the Ukrainian city of Lviv, studied medicine before World War Two. After the war, communist censorship blocked the publication of his earliest writing.
After the fall of communism in 1989 Lem ceased writing science-fiction, instead devoting himself to reports on near-future predictions for governments and organizations.
He wrote essays on computer crime, as well as technological and ethical problems posed by the expansion of the Internet.