Scientists and researchers alike are racing to find a planet that can harbor life, looking in various Galaxies, even our own. Sure, some would say that there could very likely be life outside of our Solar system, maybe even within or Solar system. But,... Because our species is very much dependent on the star we orbit, I don't think our species can function normally if we were to travel outside of our orbital range, or what Scientists call the "habitable zone". Our star has so much significance as to why we were designed the way we are, our DNA code has likely come from Sol itself. If our species were to to travel outside of our orbital range, we could very well change our DNA code sequence.
Our DNA code is frequency activated. The farther the distance from Sol the lower the frequency(light). Now, we could stand a chance on Mars, although its atmosphere is toxic to us, we could still live there, underground. Our DNA code would change, but whether it would be for the better of our species or not is unknown. We could eradicate some diseases, and maybe some viruses. However, we could also introduce our DNA to completely different, and more lethal diseases and viruses as well... Just to visit Mars physically, would have profound effects on human DNA.
All in all, we as a species are destined to live on Earth, forever. By saying that, one would conclude that we are not in heaven, nor hell.
Living in another system in OUR Galaxy is impossible, even if we had the technology to get there. Different stars emit different levels of frequency, based on their mass, age, composition, and its overall position within the multiverse as well. Well now, who is God?
I'll cut to the chase, we were created by Sol, in its image. Leaving Sol, is abandoning your creator. Without it, you're on your own!
To praise Sol would be the most logical choice!
Unless we can duplicate Sols frequency, and by succeeding that I might add, we could live anywhere!