Will to Power, Gravity, Superogatory, Evolution

In Thus Spoke Zarathustra, 'Spirit of Gravity' connotes conformist Morality, the overcoming of which by the Will to Power, e. g. Supererogatory Morality, as has been previously discussed, Nietzsche signifies as 'flying'.  Now, merely a few years later, the Human overcoming of Gravity becomes literal, as does flying.  Eventually, this venturing of the species into a new environment, i. e. the air, becomes more radical, as it leaves even birds far behind, i. e. outside the terrestrial biosphere.  So, on the basis of Will to Power, Human extraterrestrial exploration can be conceived as both an Evolutionary leap and Supererogatory action.