William Anders, astronaut on the Apollo 8 mission, passed away earlier today.
Anders took the iconic Earthrise photo while orbiting the Moon with Borman and Lovell. No human had ever seen an Earthrise before.
On the transmission he says "Oh my God, look at that picture over there! It's the Earth coming up. Wow, is that pretty!"
🌕
Image: NASA
@mcnees I vividly remember seeing interviews of the Apollo 8 crew, and his expression when they discussed Borman's space sickness. It was just a peek at his reaction to adversity, with a quiet wry grimace and a sense of "thanks, I'd prefer to forget about it".
But if you're going to spend, what, almost two weeks with three guys in a space smaller than even the worst college dorms, he's the kinda guy you'd want along.
Some time ago I made an emoji from that photo: 
@rockpick @mcnees 1. This was seen from a spacecraft in a low orbit around the Moon.
2. Even on the lunar surface, if you are close to the edge of the lunar disc as seen from the Earth, you will see a slow setting and rising of Earth due to *libration*, due to the lunar orbit being an ellipse, the Moon's orbital velocity not being constant, and the lunar rotation axis not being precisely perpendicular to the orbital plane.
https://www.schoolsobservatory.org/learn/astro/esm/moon/libration
@mcnees you know that feeling when you have some beautiful Vista, Vista you take out your phone or camera to take a picture, but no matter how you try, the picture doesn't do reality any justice?
I imagine this also must have been like that, except they wouldn't know until they got back to earth
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