What began with tragedy ended in triumph. This is the untold story of the European Space Agency’s pioneering 25-year Cluster mission to study how invisible solar storms impact Earth's environment. Like a ship in a never-ending storm, Earth is bombarded by swarms of particles ejected from the Sun at supersonic speeds. Most of these solar wind particles are deflected by the magnetosphere and sail harmlessly by, but Earth’s shield is not bulletproof. Since 2000, Cluster sailed the seas of the Sun and revealed the complexities of the Sun–Earth connection. After two-and-a-half incredibly successful decades in space, ESA took the decision to safely deorbit the four Cluster satellites throughout 2024–2026. The mission officially ended on 8 September 2024. But a space mission is so much more than science. Experience Cluster’s story as told by the people who lived it. The film also features an original soundtrack by Karlotta Skagfield and additional music by Bruce Dickinson. During the live online premiere on 30 October 2025 at 18:00 GMT / 19:00 CET, you can chat with Cluster scientists and engineers who featured in the film, including Instrument Archive Engineer Leah-Nani Alconcel, Instrument Operations Manager Gill Watson, Project Scientist Arnaud Masson, Science Operations Support Matt Taylor and Spacecraft Operations Manager Bruno Sousa, as well as the filmmakers themselves. More about Cluster here: https://www.esa.int/Science_Exploration/Space_Science/Cluster Listen to the podcast series about the film: https://soundcloud.com/esa/sets/seas-of-the-sun More about Space Rocks: https://www.spacerocksofficial.com/ Credits: ESA/Space Rocks Acknowledgements: Producer: Alexander Milas. Directors: Alexander Milas & Ryan Mackfall. Scientific Advisor: Matt Taylor. With an original score by Karlotta Skagfield and additional music by Bruce Dickinson. ★ Subscribe: http://bit.ly/ESAsubscribe and click twice on the bell button to receive our notifications. Check out our full video catalog: http://bit.ly/SpaceInVideos Follow us on Twitter: http://bit.ly/ESAonTwitter On Facebook: http://bit.ly/ESAonFacebook On Instagram: http://bit.ly/ESAonInstagram On LinkedIn: https://bit.ly/ESAonLinkedIn On Pinterest: https://bit.ly/ESAonPinterest On Flickr: http://bit.ly/ESAonFlickr We are Europe's gateway to space. Our mission is to shape the development of Europe's space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out https://www.esa.int/ to get up to speed on everything space related. Copyright information about our videos is available here: https://www.esa.int/ESA_Multimedia/Terms_and_Conditions