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Key visual of Expedition Sound, an ESA Space Science podcast series
Science & Exploration

Expedition Sound podcast series

16/07/2026 1477 views 35 likes
ESA / Science & Exploration / Space Science

Expedition Sound is a podcast series by the European Space Agency (ESA) in which you’re invited to explore the Universe through your ears. Guided by sonifications – the translation of data into sound – host Zsófi Szalavári travels from our Sun out into the depths of space to uncover what the space telescopes of ESA’s science missions teach us about the Universe.

Each episode stops at a different destination along the way, where Zsófi is joined by ESA scientists, astronomers and sonification experts, to learn about the science that is hidden in the data that our space missions send back to us.

At the heart of the podcast is the idea that sound can make astronomy more accessible. So, alongside the science, you can also hear from vision impaired astronomers, for whom listening opens an especially meaningful door into space exploration.

You can listen to Expedition Sound on all major podcast platforms including Apple Podcasts, Spotify, Podbean, Amazon Music, and more.

Episode 1 – Our Sun, Solar Orbiter, and listening to solar fireworks

Guided by a sonification created with data from the ESA-led Solar Orbiter mission, we explore some of the mysteries of our Sun. We talk to ESA project scientist Miho Janvier about how Solar Orbiter is studying these mysteries and hear from blind astronomer and science communicator Nic Bonne how sound can make astronomy more accessible.

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Our Sun, Solar Orbiter, and listening to solar fireworks – Expedition Sound episode 1
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Episode 2 – The Solar System, BepiColombo, and flying towards Mercury

Through a sonification of ESA/JAXA BepiColombo data, we get as close as possible to travelling aboard a spacecraft, experiencing what it would be like to fly towards planet Mercury. With ESA Project Scientist Geraint Jones, we talk about the mysteries that BepiColombo will reveal about this small rocky planet, and from vision impaired student Ben Ruggles we learn how he is doing science through sound at the University of Portsmouth.

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The Solar System, BepiColombo, and flying towards Mercury – Expedition Sound episode 2
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Episode 3 – Our Milky Way galaxy, Gaia and Plato, and hearing stars wobble

Expected on 13 August 2026

Episode 4 – The depths of space, Euclid, and the mysterious effects of gravity

Expected on 27 August 2026