Some people claim that governments should spend money on exploring space rather than on solving problems on Earth. I strongly disagree, although I recognise that space programmes bring some benefits.
It is fair to acknowledge what space exploration has achieved. Satellites provide weather forecasts, navigation and global communications, and technologies developed for space missions, such as lightweight materials and medical imaging, have found everyday uses. Exploration also inspires young people to study science and expands our understanding of the universe, and some scientists believe that studying other planets may help us understand climate change on our own.
However, the problems facing people on Earth are far more urgent. Hundreds of millions of people lack clean drinking water, enough food or basic healthcare, and preventable diseases still kill children every day. Climate change threatens coastlines and harvests, and education systems in many countries are underfunded. The cost of a single large space mission can reach billions of dollars; the same money could build hospitals, provide vaccines or fund renewable energy for entire regions. Governments have a duty to protect the lives and welfare of their citizens first, and it is difficult to justify sending a probe to Mars while families in the same country cannot afford medicine.
Moreover, much valuable space research is now carried out by private companies, which reduces the need for public money. Governments can therefore keep a small budget for scientific cooperation while directing the bulk of their spending towards immediate needs.
In conclusion, space exploration has real scientific value, but because suffering and environmental damage on Earth demand urgent action, I believe that governments should give priority to solving earthly problems rather than replacing that spending with space programmes.