NASA
NASA — noun
1. the full name and common abbreviation for the US government agency that runs spa
the full name and common abbreviation for the US government agency that runs space exploration, manages scientific research beyond Earth's atmosphere, and develops aircraft and spacecraft technology.
NASA's Perseverance rover landed on Mars in 2021 to search for signs of ancient life.
possessive: NASA's + [spacecraft name]
Christopher has always dreamed of working at NASA as a rocket scientist.
preposition: at NASA (workplace)
The NASA space telescope sent back clear images of a galaxy far from Earth.
Tanvi's class built a small rocket for a school project inspired by real NASA missions.
NASA engineers are testing a new spacecraft that could take people to the Moon again.
- the space agency
generic substitute used when the context already makes the reference clear; less precise
- the US space program
broader in scope — includes all American space efforts, not just NASA
用法筆記
Treated as singular in American English ("NASA is planning..."). When used as a modifier before a noun, no article is needed ("NASA engineers"); when referring to the agency directly, omit "the" ("works for NASA"). Pronounced as one word /ˈnæsə/, not as separate letters.