The question of whether governments should continue committing substantial public funding to space exploration, at a time when poverty, disease, and climate change demand urgent attention on Earth, is one that touches on fundamental priorities about how societies should allocate shared resources. Both perspectives rest on genuinely principled foundations. Supporters of continued space investment argue that the scientific advancement generated by space programmes delivers benefits that reach far beyond astronomy. Satellite technology — which underpins global navigation, weather forecasting, telecommunications, and climate monitoring — was a direct product of space exploration investment, and its practical benefits to everyday life are immeasurable. Medical imaging technology, water purification systems, and materials science advances with widespread industrial applications have all emerged from research conducted in support of space missions. Proponents also make a longer-term argument: the existential security of humanity over geological timescales depends on developing the capability to live beyond a single planet, and the time to begin that work is before it becomes urgent rather than after. Opponents counter that the immediacy of suffering on Earth makes it ethically indefensible to divert significant public resources toward exploration when billions lack access to clean water, adequate nutrition, and basic healthcare. The resources required for a single deep-space mission could fund years of targeted interventions in global health or climate adaptation, producing measurable reductions in human suffering. From this perspective, space exploration — however intellectually exciting — represents a luxury that prosperous governments indulge while their responsibilities to the living remain unmet. In my view, this is a false binary. The budgets allocated to space programmes are a small fraction of government spending; redirecting them would not resolve poverty or climate change, while abandoning the long-term scientific investment would carry its own costs. The real question is not space versus Earth, but whether all public spending is as purposeful and efficient as it could be — and space exploration, in that context, remains a justified priority alongside, not instead of, our earthly responsibilities.