last frontier

• Expressão que designa a região mais remota, desconhecida ou não explorada de um país ou área do conhecimento. Usada frequentemente para descrever o Alasca nos Estados Unidos ou, metaforicamente, a exploração espacial e a pesquisa científica de ponta.

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 fronteira

   • 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.