Gerard Kitchen O'Neill

Gerard Kitchen O'Neill was an American physicist and space advocate who is best known for his ideas about space colonization and the establishment of human habitats in space. He proposed the concept of O'Neill cylinders, large rotating habitats that could support human life in orbit. O'Neill's work in the 1970s and 1980s inspired interest in space settlement and influenced discussions about the future of humanity in space. His vision continues to resonate in the ongoing dialogue about space exploration and colonization.