Frontier refers to the boundary or edge of a settled area, often associated with exploration and expansion into new territories. Historically, it has been linked to the American West, where pioneers moved into uncharted lands, seeking new opportunities and resources. The concept of the frontier symbolizes adventure, discovery, and the challenges of adapting to new environments. In modern contexts, the term can also describe the limits of knowledge or technology, such as in science or space exploration. Researchers often push these frontiers to uncover new information, develop innovative solutions, and expand our understanding of the universe and its possibilities.