Well, in Japan, Western Europe and the eastern United States it is.
But not in many other places.
Click to see a really big version of the earth at night from space:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1MJWk-X9BW_fMUnFF05ttyDyd3l8mqPPngIrSQkU31jglGY3Lo8ByVsajR536is5STrQcFtWOra2Q1SBVZcHUEDcRqvXoigFATUJbknVBwCT7lzYorKG2rrG3T5iEHydthB9_/s400/earth_lights.gif)
And wonder... about the needless electricity some of us use, and many more of us can't. And much more besides.
On looking at this my 5 year old son told me that he is going to go to the moon.
He could well.
The full set of NASA night shots are here - some of the files are very detailed and very big.
HT: Charter Cities Blog