Write an essay about Should governments spend more money on space exploration?

Science may well give us good things. We all know Velcro came from NASA. But why bother spending all this money exploring space and finding out there was water on Mars at some point in the last few thousand years (we have water in Earth) when these same great minds could be applied to finding better ways to power humanity’s insatiable desire for energy, to feeding the starving millions around the globe, and generally making life down here better before looking up into the heavens. It seems the authoritative powers have their heads way, way up in the clouds.