While space exploration may seem like an extravagance, it can actually be instrumental in addressing some of Earth's most pressing challenges. Space technology has a myriad of practical applications. Satellites, for instance, help monitor and manage resources, predict natural disasters, and enhance communication. 

Space-based research also contributes to climate science, aiding in our understanding of climate change and its mitigation. Furthermore, innovations from space missions often find their way into everyday life, from medical advancements to water purification technologies. So, while the cost of space exploration is high, the knowledge and technology it generates can play a vital role in addressing issues here on Earth.