The Tunguska event (reconstruction) Listen to the 1908 Tunguska event as it sounded
The Arecibo 1974 CETI message in Audio format
OUR RADIO PROGRAMS On to Mars! Spend 2 weeks on Mars - with Mars Society (Ed. Henrik Hargitai) 2006.03.
Richard Lohmann: Measuring size and distance in Astronomy
Audio atlas of the Solar System (Hungarian)