Translation guide
The Japan Aerospace Exploration Agency (JAXA) is Japan's national space agency. In Japanese, it is almost always referred to by its acronym or full official name.
JAXA
Most common way to refer to the agency in both English and Japanese contexts.
Japan Aerospace Exploration Agency
Referring to Japan's national space agency in conversation or writing.
The acronym is used as a proper noun in Japanese, pronounced ジャクサ. It is the standard way to refer to the agency in news, casual talk, and official contexts.
JAXA is developing a new rocket.
The full official name. Used in formal documents, legal contexts, or when introducing the agency for the first time. Often shortened to 宇宙機構 in some contexts.
The Japan Aerospace Exploration Agency was established in 2003.
In Japanese, JAXA is treated as a proper noun and written in Latin alphabet or katakana. It is not translated into kanji. When speaking, pronounce it as ジャクサ.