A Sonic Journey across the Universe
An exploration of our musical cosmos, from Earth to the edge of the observable universe, created through sonification of astronomical data.
Sound can鈥檛 travel across the vacuum of space but that doesn鈥檛 mean there鈥檚 nothing out there to be heard. By converting light and other signals into sound through the process of sonification we can experience the beauty of the cosmos with our ears. This musical journey begins on Earth, looking up at the night sky, and then takes off to travel through the solar system and beyond, eventually reaching the edge of the observable universe. Throughout the journey you will hear the patterns, cycles, waves - and in some cases, even literal sound - of the vast universe beyond Earth鈥檚 atmosphere.
A variety of sonification techniques are used to create this cosmic soundscape. Radio and magnetic waves detected by satellites and space probes are converted into mysterious sweeping sounds that are reminiscent of sci-fi soundtracks. Literal sound waves rumbling through the sun are made audible by bringing their frequencies into the human hearing range, resulting in a deep meditative drone. The spiralling rhythms and subtle harmonies of planetary systems are realised by actual instruments after speeding up their motions by many times. Fluctuating light received from pulsating stars can be heard as rich, flickering tones and in some special cases, as rhythmic heart beats. Even telescopic images of distant galaxies can be converted into music by mapping visual properties to sonic qualities. At the farthest extreme, we can recreate the primordial sound waves that resonated shortly after the big bang to hear the descending hum of our expanding universe.
The universe is a very musical place; we just need to know how to listen.