Exoplanet biosignatures are indicators that potentially point to the presence of life on planets outside of our solar system, known as exoplanets. Scientists are actively researching and identifying specific biosignatures that might exist on exoplanets, such as the presence of certain atmospheric gases like oxygen, methane, or carbon dioxide. These biosignatures can help astronomers in the search for habitable exoplanets and potentially even extraterrestrial life. The study of exoplanet biosignatures is a rapidly evolving field that combines astronomy, astrophysics, and astrobiology.