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How sound is providing new clues about the Universe

Astronomy is often thought of as a visual science that produces stunning images of the cosmos. But it's possible to hear it as well.

Astronomers are drowning in data. On the ground and in space, artificial eyes peer out in every direction from Earth. Where the human eye can pick out only the 5,000 brightest stars in the sky, the world's telescopes observe trillions. Other instruments detect black hoke accretion discs, gravitational waves, pulsars, quasars, exoplanets, as well as indirect evidence of invisible phenomena like dark matter and dark energy.

This wealth of observational data often leads to spectacular images that populate astronomy journals and websites. But a growing number of astronomers are now also analyzing it using sound. Through "data sonification", they convert numbers into audible tones, chirps and hums to augment their intuitive experience of the invisible universe.

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Just as scientists use color, shape, and size to visually represent different types of data, they can use timbre, volume, pitch, spacialization and other qualities to expand the parameter space.

By Patchen Barss. 11th October 2023

Extracted and adapted from BBC. Available on

https://www.bbc.com/future/article/20231011-

how-sound-is-providing-new-clues-about-the-

universe Access on November, 14 2023.

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