That is if we are to survive the childhood of human development, and move on to the cosmos which will only be inhabited by cosmic adults.
The Tenets of Ecocosmology point out that we humans are a species that rely, for our very existence, on habitable planets near central stars.
Central stars that eventually destroy those habitable planets near them, just before the star wears out and diminishes into obscurity.
Which means that humanity will eventually need to discover other planets near stars, travel to them, and then colonize them, if humanity is to continue to exist.
In that regard the NASA Kepler mission is on the case looking for habitable planets.
But a new and hopeful development is being talked about, and that is the prospect of habitable moons in addition to habitable planets:
Since the launch of the NASA Kepler Mission earlier this year, astronomers have been keenly awaiting the first detection of an Earth-like planet around another star. Now, in an echo of science fiction movies a team of scientists led by Dr David Kipping of University College London thinks that they may even find habitable ‘exomoons,’ too.(Science Daily). That of course increases the chances of finding a new home world; a necessity because our star will eventually become a threat to our species.
Scientists tell us that we began as nomadic hunter gatherers, and so it seems that we shall stay that way through the more distant reaches of time.
Or, as the Tenet 3(f) of Ecocosmology points out, until we evolve or morph into beings who do not need to rely on habitable orbs near central stars.
Thus, we live in a cosmos where religion or mysticism and science both have prospective contributions to our future well being.