Evolution of Artificial Intelligence in Defence and Deep Space Exploration

This paper examines the transformative role of artificial intelligence (AI) in modern military and space domains. It reviews how AI capabilities—ranging from autonomy and machine learning to data analytics—have advanced defence and deep-space exploration. Key applications are surveyed under AI in Defence (including autonomous systems, surveillance, cybersecurity, predictive analytics, and decision support) and AI in Deep Space Exploration (including autonomous navigation, robotic rovers, astronaut assistance, data processing, and mission resilience). A comparative analysis highlights similarities (e.g., autonomy, big data analysis) and differences (operational environments, objectives) between the two fields. Ethical and security challenges are addressed, focusing on autonomous weapons, AI reliability, hacking vulnerabilities, and human–AI accountability. The Future Directions section explores emerging trends such as swarm intelligence (drone and satellite swarms), quantum-enhanced AI, dual-use research concerns, and growing collaboration between military and space agencies. Throughout, real-world case studies from DARPA, NASA, ESA, ISRO, and others illustrate both opportunities and risks. The paper concludes that AI offers revolutionary benefits but demands rigorous safeguards.