noun
space debris; space junk
Refers to defunct human-made objects in space, such as old satellites and rocket parts. Often used in news and scientific contexts.
See also: スペースデブリ
宇宙ゴミが増えると、宇宙開発に危険が及ぶ。
As space debris increases, it poses a danger to space development.
国際会議で宇宙ゴミの除
Methods for removing space junk were discussed at the international conference.
More technical English-derived term for space debris; 宇宙ゴミ is the common Japanese equivalent.
Compound of 宇宙 (space) and ゴミ (trash, garbage). A straightforward modern coinage.