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
As space debris increases, it poses a danger to space development.
Methods for removing space junk were discussed at the international conference.
Common mixed kanji-katakana spelling.
Mixed kanji-hiragana variant.
Rare kanji spelling using 塵; may be confused with うちゅうじん (cosmic dust).
Compound of 宇宙 (space) and ゴミ (trash, garbage). A straightforward modern coinage.