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J. Heim talking about a topic near and dear (....well, hated) to my heart: satellite pollution! Satellite pollution is visible worldwide, affects astronomers, stargazers, and maybe affect migratory species.

8,600 active satellites now, estimate up to 100,000-500,000 could be in orbit in future. Huge impact to professional astronomers, but also to amateurs, photographers, and eveyrone who looks at the sky.

Collision risk increasing rapidly. Pollution to atmosphere too.

#ALAN2023