I found this article that really puts the significance of our race into mind-boggling perspective. I cut parts out to shorten it up, original article/site can be found here.
——-

How old are you? You probably think you've been around a while, that your 20/30/40/50 years on this planet is quite a long time, that you've seen a lot of changes? On our time-scale, you're probably quite right. On the time-scale of this planet, in geological time, you might as well have never existed.
Mount Everest, the highest point on the planet, is composed of marine limestone. It used to be under the sea, but slowly, millimeter by millimeter, it has been pushed upwards (and continues to do so, as India collides with Asia). You might think a year is a long time, but can you even begin to comprehend the lifespan of Everest?
Our planet is one tiny insignificant rock orbiting one average, ordinary star in the outskirts of the Milky Way, itself just one ordinary galaxy among billions. When you look up into the night sky on a clear night, you can hardly see any stars at all. If you could see all of them, if our eyes were better and there was less dirt in the universe, the sky would be completely white. There would not be the smallest gap between the stars that you see
For every star that you can see, there are thousands of galaxies, each containing billions of stars. The Milky Way itself is an insignificant speck. Our solar system is an insignificant speck within that. This image was taken with the Hubble Space Telescope, and the area of sky that is represents is approximately 1/30th the apparent diameter of the full moon. As you can see for yourself, it is packed with galaxies. Galaxies, not stars:
People think that we are somehow blessed or special, so of course the "Creator Of The Universe" must have set aside this little corner of the universe just for us, right? Religion used to teach that the Earth was the centre of the universe, the single most important place that God created.
Now, we know better. If the Earth was destroyed tomorrow, the universe would neither miss us nor mourn our passing. Would you notice one grain of sand missing from the beach?
We think we are special, and that supremely powerful beings look after us. We are not special; we are simply the result of a (probably very common) chemical accident billions of years ago, in a place where the conditions are right for life to flourish.
The same thing probably happens all over the universe, and in many places there will be life. Some will be more advanced than us, others less advanced. In many places, the conditions will not be right for life. There are probably entire galaxies or clusters of galaxies where life will never arise, because the conditions there are too extreme. Galaxies with super massive black holes, areas of stellar genesis (such as the Orion Nebula), maybe regions close to quasars may never produce life due to intense radiation or gravitational disturbances.
We are certainly lucky, yes, but special? No.
Just to make you feel really insignificant =), this is a scale diagram of Earth, Jupiter (which is about ten times the diameter of Earth), and the Sun (about ten times the diameter of Jupiter). The tiny blue ball is where we are. This is where we fight our wars, worship our ten thousand different gods, kill each other over a few meters of territory, argue with our neighbors about exactly where the property line is, pollute our fine film of atmosphere (too small to show up on the picture), and live out our lives. The Earth is whizzing around the Sun at 67,000 miles per hour. By the time you've read this page we have traveled ten thousand miles together. Hope you enjoyed the trip!
Popularity: 100% [?]