12. Deep-Sea Vents and Hydrothermal Systems
In the dark depths of Earth’s oceans, life flourishes around hydrothermal vents—hot, mineral-rich fissures on the seafloor. These ecosystems are powered not by sunlight, but by chemical energy, demonstrating that life can thrive in extreme, isolated environments. Research from NASA Astrobiology suggests similar systems may exist on icy moons like Europa or Enceladus, raising hopes that life could arise wherever water and energy converge.