biosignature
/ˈbaɪ.oʊˌsɪɡ.nə.tʃər/
Definition
Any substance, structure, or phenomenon that provides scientific evidence of past or present life, often used in the search for extraterrestrial biological activity.
Etymology
The word is a 20th-century scientific compound formed from the Greek 'bios' (life) and the Latin 'signatura' (a sign or mark). It combines these roots to denote a chemical or physical marker that acts as a telltale sign of biological processes.
In the news
The term appears as a category in the article’s sidebar, highlighting it as a core focus of ongoing astrobiological research and conference discussions. It represents the central goal of space exploration missions aimed at identifying habitable environments or alien life.
New Deadline For NASA Astrobiology Science Conference (AbSciCon) Announcement for Partnership Proposals (AFPP)
Read the full article ↗Astrobiology Web