Space is a crowded place, some say, and the closer you look from Earth the more crowded it might appear. A cluster of more than 1,000 satellites orbits at several hundred kilometres above Earth’s surface in the so-called Low Earth Orbit (LEO). They serve the weather and earth observation tasks, and fulfil multiple purposes, from private and civil to research and military applications. The International Space Station (ISS) – close to 400 kilometres – and the Hubble telescope – our eye into deep space at 559 kilometres – are amongst these LEOs.
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