Pleasant Point New Zealand Look no further than the explanations offered by those who subscribe to the Gaia theory. The Earth is itself a living organism, ergo it must reproduce.
Humans are the latest experiment by the Earth to assist it in colonising other planets.
Our yearning for the stars is not purely for the sake of grand space adventures. In other words, we are spores being sent out to reproduce another Earth. We have the laborious task of collapsing all the quantum wavefunctions by making conscious observations. In other words, we are the universe's way of observing itself. And we are the only species who makes croissants.