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On Thursday, the European Space Agency (ESA) published a video taken from the International Space Station (ISS) by astronaut Alexander Gerst. The video shows time-lapse footage of the Russian Progress MS-10 cargo spacecraft that launched from the Baikonur cosmodrome in Kazakhstan on November 16. The footage is almost unbelievable as it shows the spacecraft, on a resupply mission to the ISS, arcing into orbit. The camera pans slowly and follows the unmanned Russian craft, revealing Earth’s curvature in epic scale.
motherboard.vice.com...
There really isn't a sharp boundary to the atmosphere, but it gets rapidly thinner the higher you go.
Airglow is caused by various processes in the upper atmosphere of Earth, such as the recombination of atoms which were photoionized by the Sun during the day, luminescence caused by cosmic rays striking the upper atmosphere, and chemiluminescence caused mainly by oxygen and nitrogen reacting with hydroxyl ions at heights of a few hundred kilometres.
Aren't they always missing because of brightness or something?
originally posted by: ChaoticOrder
Are we sure this is actually a real video? It looks kinda like CGI to me, especially that atmosphere, I don't recall it ever looking so prominent in other similar footage.