You can view the entire film in 10 minute segments on youtube but, before you do, I’d like to call your attention to the final segment where some of the astronauts share how their journeys changed them. The segment starts with Eugene Cernan and Charlie Duke describing their feelings of wonder, and how those feelings convinced them of God’s existence (Duke actually became a born-again Christian not long after).

Being a fairly recent (2 year) de-conversion to atheism, I can relate to these men. I’ve shared similar experiences of wonder and majesty – most notably while hiking in the mountains, or going for 10+ mile runs (runner’s high’ll get ya every time). And, yes, two years ago, I too would have given credit to god for those wonderful feelings.

However, since the de-conversion, the source of those feelings has changed, and I’ve become more and more fascinated with the seemingly universal tendency for us to attribute these emotions to a god or creator.

Why is this so?

Some think it’s connected to our affinity toward anthropomorphizing – attributing human qualities to things that are not. In this case, humans create things, so we assume that the universe must also have been created by something human-like, only much more powerful.

Scientists who study the brain may tell you that our willingness to invoke god is connected to our ability to identify patterns. In this case, the pattern is that most everything we observe has a cause, and we extend that pattern to the assumption that the universe must also have a cause.

But is this correct thinking? Just because we see cause and effect around us, does that mean the same rule applied to the formation of the universe? If a god can simply exist, then why can’t a universe? Also, could the Big Bang have been preceded by a Big Crunch, and that crunch have been preceded by a different Big Bang? Might this process be cycling on eon after eon after eon?

And, even if the universe did have an external cause, why would that cause need to be an intelligence or a god? Might it just as easily be another universe, as multi-universe theory proposes?

And then there’s the fact that most of us were raised by parents who told us that God created everything, and many of us grew up in churches where everyone agreed the universe was created by God. How many of those people really examine these claims from authority? After all, all those smart people couldn’t be wrong – could they?

I wonder, if parents stopped teaching this idea to their children, how would it take long before our sense of wonder aimed itself at the natural world instead of some unknown, undetectable entity?

There is a world of science awaiting those who would ask these questions. There is a world of wonder awaiting those willing to entertain the idea that maybe, God didn’t do it. And, in my opinion, the fact that our universe came to be without a deity makes it even more wondrous and majestic.