Translation guide
The U.S. government agency responsible for space exploration and aeronautics research. In Japanese, it is almost always referred to by its acronym NASA, pronounced ナサ.
Referring to the organization NASA
The acronym is universally used in Japanese, written in Latin letters or occasionally as ナサ. The full name is rarely used outside formal documents.
NASAはアメリカの宇宙機関です。
NASA is the U.S. space agency.
An abbreviated formal name using 米 (べい) for 'American'. Seen in some news headlines or official abbreviations.
米航空宇宙局の予算が増額された。
The budget of the U.S. space agency was increased.
In almost all situations, simply say or write NASA (ナサ). The full Japanese translation is only used in very formal documents or when explicitly introducing the agency.
The official Japanese translation of the full name. Used in formal or official contexts, news reports, or when the full name is required.
アメリカ航空宇宙局（NASA）は新たな火星探査計画を発表した。
The National Aeronautics and Space Administration (NASA) announced a new Mars exploration plan.