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Los aminoácidos en una condrita carbonácea antártica
Science (New York, N.Y.)
|October 19, 1979
Resumen
Los aminoácidos fueron descubiertos en meteoritos antárticos, lo que indica un origen espacial. El análisis confirma que estos meteoritos son prístinos, preservando su composición original desde el espacio.
Área de la Ciencia:
- Cosmoquímica es la cosmoquímica.
- Astrobiología Astrobiología.
- Geología Geología Geología.
Sus antecedentes:
- Las condritas carbonáceas son meteoritos primitivos.
- Los meteoritos antárticos ofrecen una preservación única.
Objetivo del estudio:
- Investigar el contenido de aminoácidos en las condritas C2 de la Antártida.
- Determine el origen de estos aminoácidos.
- Evaluar las alteraciones terrestres de los meteoritos antárticos.
Principales métodos:
- Extracción acuosa de muestras de meteoritos.
- Análisis de la composición de los aminoácidos.
- Análisis comparativo con otras condritas.
Principales resultados:
- Aminoácidos detectados en extractos acuosos de una condrita carbonácea antártica C2.
- La composición de aminoácidos sugiere un origen meteorítico.
- No se observaron alteraciones terrestres significativas en el meteorito antártico.
Conclusiones:
- Las condritas C2 de la Antártida contienen aminoácidos autóctonos.
- Estos hallazgos apoyan el origen extraterrestre de las moléculas orgánicas en los meteoritos.
- El hielo antártico proporciona un excelente entorno para preservar muestras meteoríticas prístinas.
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