This is a great video of atmospheric refraction in action

[Stonius]

Watch how the moon 'squishes' as it sets behind the earth as seen from space.

http://www.iflscience.com/space/incredible-video-of-the-moon-setting-behind-earth-captured-by-cosmonaut/

[multiweb]

:eyepop: Really cool vid. That's the soup we've got to go through to get a decent FWHM. I understand now... :lol:

[RB]

Proves the moon is flat too.

:lol:

[Atmos]

I agree! It shows perfectly well that what is really happening is that there is a change in perspective and you can see that the moon is clearly flattening out!