Did God ever talk about his other creations? I have always been a lover of all things "Science", space, other life forms, etc. I excelled in Science in School but a few years ago I started questioning things and now believe that "Science" and God can coexist - something that most people I've spoken to disagree with.

Anyway. There are other planets out there, we all know that. But does Life exist on any of those planets? Does God ever mention anything about his other creations (outside of Earth)?

When we look at Earth from outside of it (correct me if I'm wrong), we can see the lights all across the world. But when we look at other planets, there are no lights. This alone leads me to believe that there are no other forms of life on planets that we can see - unless they are completely different from us and are of colors that our eyes cannot see, or is it that God made it so that forms of life on one planet cannot communicate with or see forms of life on another planet?

I would very much like this to be a discussion but since that's not appropriate for this website I would like to know if there is anything in the scriptures about any of this?
This is not an answer but a scientific clarification, please delete if inappropriate. But since the OP asked  


  (correct me if I'm wrong)



Lights on earth are only visible from space if you are very close.
The only planets we can actually "see" are the ones in our solar system. As far as we know these don't carry any life at all 
With the aid of Kepler telescope, NASA has recently discovered three "earth like" planets that are not too far away http://www.npr.org/2013/04/18/177774505/kepler-telescope-spots-three-new-planets-in-the-goldilocks-zone
If these planets had lights we would not be able to see them from that distance. It's just too far away.
Visible light for humans only covers a small part of the
electromagnetic spectrum. Even on earth there are animals that use
different frequencies for vision. We have no reason to believe that
life on other planets would "see" the same way
However, we would expect some sort of electromagnetic radiation from a technological advanced civilization. We sure produce a heck of it.
Then again, the planets that Kepler has found (and there are most likely lots more out there) are about 1000 light years or so away. That means it takes about 1000 years for any type of radiation to get here and we'd only hear/see/detect what happened there 1000 years ago. So far we've come up empty. 
If today there would be an alien at a Kepler planet pointing their radio-telescope at earth they would detect absolutely nothing. 1000 years ago, earth didn't radiate any electromagnetic waves.
The whole definition of "Life" is a tricky problem in itself. See http://en.wikipedia.org/wiki/Life#Definitions. For example it's not entirely clear whether a virus is a living thing or not (according to most, but not all, definitions it's not)
We don't have very credible idea of how life on other planets may look like or express itself and how we would recognize it as such if we came across it.