title: Strategies for remote detection of life--DARWIN-IRSI and TPF missions.
abstract: Having selected a general definition of a living system, we wonder whether a remote detection of such systems can be made, at least in some cases. Quite fortunately, we find that this seems possible. We describe the present status of missions with this goal.
authors.affiliation: Institut d'Astrophysique Spatiale, CNRS, Orsay, France. leger@ias.fr
authors.forename: A
authors.initials: A
authors.lastname: Leger
mesh_terms: D055580:Astronomical Phenomena; D001256:Astronomy; D001272:Atmosphere / Q000737:chemistry; D002245:Carbon Dioxide / Q000032:analysis; D018559:Exobiology / Q000379:methods*; D005118:Extraterrestrial Environment; D007259:Infrared Rays; D007368:Interferometry; D019369:Life; D008697:Methane / Q000032:analysis; D010100:Oxygen / Q000032:analysis*; D010126:Ozone / Q000032:analysis*; D016083:Planets; D013472:Sunlight; D014867:Water / Q000032:analysis*
chemical_list: D014867:Water; D002245:Carbon Dioxide; D010126:Ozone; D008697:Methane; D010100:Oxygen