For centuries, humanity has gazed at the stars with a mixture of wonder and ambition. The question of whether we are alone in the vast universe has fueled scientific exploration and philosophical inquiry. While definitive proof remains elusive, recent breakthroughs in astrobiology have offered tantalizing glimpses into the possibility of life beyond Earth. This article explores the latest findings in planetary science that shed light on potential habitable zones, the existence of extremophiles, and the remarkable diversity of life forms across the galaxy. It also delves into the ethical and philosophical implications of discovering extraterrestrial life, prompting us to consider our place in this expansive universe.