It 's been like that a few days this summer up here in Surrey.
Saw it red when I was in Greece once because of the sand from the Sahara being blown up in front of it but the Sahara is a bit further away from southern England than it is Greece!!
It is quite scary though - you can imagine people in ancient times thinking that the world was going to end
Nope. The moon is yellow, from here. But if you are somewhere else in the universe, then it's another colour (particularly if you are out of Photoshop range).