Manami, you must learn how to use a public forum like this; you can't just enter in any thread asking unrelated questions, you must:
1- Use the "search" option to see if your question has been discussed already.
2- If not, open your own thread, with your question.
Answering your question, Lem is alive but his healt is not very good, and he used to write regularly for Polish magazines until now, as far as I know.
I hope some citizen from Poland can give you more information.