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Rebroadcast available until 01/17/2025 The northern lights are not just majestic light choreographies. Caused by solar storms, they can also disrupt telecommunications networks, satellites and even the climate. The northern lights occur when electrically charged solar wind particles encounter the Earth's magnetic field. While the origin of these breathtaking luminous marblings is no longer mysterious, new studies are now focusing on their sometimes harmful consequences. These natural phenomena influence the behavior of animals and can disrupt certain infrastructures. In extreme cases, the northern lights can even damage satellites, disrupt air traffic and high-voltage lines, or even paralyze telecommunications networks. The documentary also looks at their possible repercussions on the chemical composition and temperature of the atmosphere. Documentary by Simo Sipola (Finland/France, 2019, 52mn) #ARTE #Sciences #Astronomy Subscribe to the ARTE channel / @arte Follow us on social media! Facebook: / artetv Twitter: / artefr Instagram: / artefr