Black Marble: Watch Nasa’s phenomenally beautiful nighttime Earth animation
This is so astonishingly wonderful. I wish I could make it loop on YouTube because I would happily watch it for hours.
You can also download the high resolution images and the animation itself from Nasa’s Earth Observatory page. Which, YES.
I’ve picked out a few details which I found particularly pleasing but definitely go and check it out:

This starburst is Moscow

The Nile becomes a river of light

And this is Europe :)
If you’re new to Nasa’s bonkersly wonderful (and I mean that in the very literal sense of being full of wonder) imagery then there’s an added bonus for you – the Black Marble actually forms a counterpoint and companion piece to the Blue Marble gorgeousness from earlier in the year which you can see using the handy link below!
>> NASA’s Most Amazing High Definition Image of Earth – Blue Marble 2012