Biosignature
Substance providing scientific evidence of past or present life / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Biosignature?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
For other uses, see Biomarker (disambiguation).
A biosignature (sometimes called chemical fossil or molecular fossil) is any substance – such as an element, isotope, molecule, or phenomenon – that provides scientific evidence of past or present life on a planet.[1][2][3] Measurable attributes of life include its complex physical or chemical structures, its use of free energy, and the production of biomass and wastes.
This article may require copy editing for grammar, style, cohesion, tone, or spelling. (June 2023) |
The field of astrobiology uses biosignatures as evidence in the search for past or present extraterrestrial life.