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Chapter 8: Searching for Life Beyond Earth.
Chou, Luoth; Grefenstette, Natalie; Borges, Schuyler; Caro, Tristan; Catalano, Enrico; Harman, Chester E; McKaig, Jordan; Raj, Chinmayee Govinda; Trubl, Gareth; Young, Amber.
Afiliación
  • Chou L; NASA Goddard Space Flight Center, Greenbelt, Maryland, USA.
  • Grefenstette N; Center for Space Sciences and Technology, University of Maryland, Baltimore, Maryland, USA.
  • Borges S; Georgetown University, Washington, DC, USA.
  • Caro T; Santa Fe Institute, Santa Fe, New Mexico, USA.
  • Catalano E; Blue Marble Space Institute of Science, Seattle, Washington, USA.
  • Harman CE; Northern Arizona University, Flagstaff, Arizona, USA.
  • McKaig J; Department of Geological Sciences, University of Colorado Boulder, Boulder, Colorado, USA.
  • Raj CG; Sant'Anna School of Advanced Studies, The BioRobotics Institute, Pisa, Italy.
  • Trubl G; NASA Ames Research Center, Mountain View, California, USA.
  • Young A; Georgia Institute of Technology, Atlanta, Georgia, USA.
Astrobiology ; 24(S1): S164-S185, 2024 Mar.
Article en En | MEDLINE | ID: mdl-38498822
ABSTRACT
The search for life beyond Earth necessitates a rigorous and comprehensive examination of biosignatures, the types of observable imprints that life produces. These imprints and our ability to detect them with advanced instrumentation hold the key to our understanding of the presence and abundance of life in the universe. Biosignatures are the chemical or physical features associated with past or present life and may include the distribution of elements and molecules, alone or in combination, as well as changes in structural components or physical processes that would be distinct from an abiotic background. The scientific and technical strategies used to search for life on other planets include those that can be conducted in situ to planetary bodies and those that could be observed remotely. This chapter discusses numerous strategies that can be employed to look for biosignatures directly on other planetary bodies using robotic exploration including those that have been deployed to other planetary bodies, are currently being developed for flight, or will become a critical technology on future missions. Search strategies for remote observations using current and planned ground-based and space-based telescopes are also described. Evidence from spectral absorption, emission, or transmission features can be used to search for remote biosignatures and technosignatures. Improving our understanding of biosignatures, their production, transformation, and preservation on Earth can enhance our search efforts to detect life on other planets.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Exobiología / Medio Ambiente Extraterrestre Idioma: En Revista: Astrobiology Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Exobiología / Medio Ambiente Extraterrestre Idioma: En Revista: Astrobiology Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos