If it was not modified, it would be a very long, slow, and boring film of the Earth.
Well, if you want to see "very nice" footages of the earth, full of lights and effects, just watch Star Wars.
Star Wars doesn't take place anywhere near Earth. Anyway, I'm not sure what effects you think are being used in this video. There are lights from cities, lights from arorae, lights from lightning and light from the moon. Everything I'd expect from the real thing is in this video, so I can't conclude that it's fake.
Oh yeah. I forgot that Star Wars takes place in a "galaxy far, far away"... What a shame! (ironic). But anyway, Star Wars has many scenes of planets populated by huge cities, full of lights, in an explosion of colors and effects. Considering that this video is real, I don't think it is the best way to see a real shooting of Earth from space. This is so edited, it looks more last generation video game/film scene than a real shooting.
And I still saying: if you like both space and electro-magnetism, go watch Star Wars or playing video games on this theme.