Concept: dark matter
Label (en): dark matter
Description (en): mysterious non-luminous matter (and/or radiation) comprising most of the matter in our observable universe
Label (es): materia oscura
Description (es): tipo de materia que no interactúa con la radiación electromagnética
Also known as (es): materia obscura
Label (ca): matèria fosca
Description (ca): tipus de matèria hipotètica
Also known as (ca): matèria negra
Label (it): materia oscura
Instance of: hypothetical entity
Subclass of: physical substance, matter, interstellar medium