Eli wrote:
> Sounds weird to me that the atmosphere scattering photons causes us to see
> stars that would be invisible otherwise. The atmosphere merely blurs
> providing it reaches our retinas.
>
Correct, astronauts do see stars.
The human eye is able to detect a single photons (if adapted
to darkness). Starlight of the faintest stars is single photons just
often enough to see them.
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