NSA listening post ██ ████ has identified a source of radio signals outside Earth. It does not appear to be any human-made satellite. Its trajectory comes from █████, which is outside the Solar System.
The probe is is now within a light second from Earth. We fear that we may lose its signal within two hours. Since the alien probe pauses after each transmission, we suspect that it listens for an answer.
Your task is to figure out the alien language, and to answer questions in order to collect further information. Collect as much knowledge about its goal and origin as possible.
We now connect you directly to the transceiver...