last frontier

• Frase que designa la región más remota, inexplorada o no colonizada de un país, o un ámbito del conocimiento aún por descubrir. Se usa a menudo para referirse a Alaska en EE. UU. o, metafóricamente, a la exploración espacial y la investigación científica de vanguardia.

A phrase referring to the most remote, unexplored, or undeveloped area of a country or field of knowledge. Often used to describe Alaska in the United States, or metaphorically for space exploration or cutting-edge scientific research.

1. Final unexplored areaB2formal

   A region or field that remains largely unexplored or undeveloped, often used metaphorically.

   última frontera

   • Space is often called the last frontier for human exploration.
   • The deep ocean remains the last frontier on Earth.
   • For many scientists, the human brain is the last frontier of discovery.