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> The Earth looks bright from the Moon, as the Moon does to us. So lets call that 100% bright.

No it doesn't, because as I've stated twice, it's the dark side of the earth we're seeing, because the sun is behind it. It's more like 1% bright, as compared to the moon's visible illuminated surface.

Think how bright the dark part of a thin crescent moon is. That's how bright the earth is going to be in this picture. Close to black, except for maybe a sliver of a crescent similar in brightness to the moon's surface.

So again -- this photo makes no sense. Unless one of the two objects is just lens flare, or there's another kind of artifact.



Wide angle lens could explain it. We see the earth is not fully illuminated in one of the pictures. And the “curve” of the lunar surface is most likely from wide angle lens.


No, wide angle lens has nothing at all to do with exposure or illumination. That wouldn't explain anything.


You’re stuck on being certain we’re looking at the dark side. My point of wide angle lens is maybe we’re not looking at it in a crescent state after all, the angles just appear that way due to the lens. You can see the illumination state in the other photos.

I’m not sure what you’re proposing, that this is a fake image?


I'm not "stuck" on it being the dark side. Of course I'm certain it is, that's how the solar system works. It's how shade works. The sun isn't in between the earth and the moon, or else we wouldn't be here commenting on HN. ;)

I'm pretty sure I solved it, see: https://news.ycombinator.com/item?id=43452888

Not a fake image, but a totally incorrect caption.




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