Les « déchets spatiaux » sont un problème de plus en plus urgent !
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ÉducationTranscription
00:00 The space around us has become a real landfill.
00:03 In 2022, we sent 36,000 debris of more than 10 cm in diameter,
00:08 900,000 objects of more than 1 cm,
00:10 and nearly 130 million objects of more than 1 mm.
00:15 You would tell me that 1 mm is so tiny.
00:16 And yet, their average speed of 8 km per second
00:20 gives these objects a considerable kinetic energy.
00:24 These debris, which move at crazy speeds,
00:26 represent a real danger for our satellites and our space missions.
00:30 A simple particle the size of a pencil eraser
00:33 could pierce a 13 cm deep hole in a piece of aluminum,
00:38 like this image.
00:39 So what's the Kessler syndrome in all this?
00:41 It's the name given to a dreaded scenario
00:43 where a collision between two objects creates a chain reaction of collisions,
00:47 generating even more debris.
00:49 It becomes essential to provide solutions to avoid such a disaster in Earth orbit.
00:54 [music playing]
00:57 (whooshing)