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Satellites: forging metal and finding cholera

The Naked Scientists Podcast

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The Night Sky Is a Beautiful Natural Resource, Right?

Man-made satellites are not huge and the night sky is very big, so is it really that much of an issue all these satellites whizzing about above our heads? It really is because even though artificial satellites are not very big themselves, they do have these giant solar panels which are very reflective. And if there are just so many of them, they will get very crowded up there. You can even see nowadays, there are astronomers right now going to professional telescopes and taking images of the night sky and the images that come back are just crisscrossed by trails and streaks and lines from these artificial satellitesthat completely ruin the image. For radio astronomy, for example, these satellites

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