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Updated: May 5, 2026
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Generation of Myospheres From hESCs by Epigenetic Reprogramming
Published on: June 21, 2014
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La apariencia esponjosa de Hiperión parece una esponja.
P C Thomas1, J W Armstrong, S W Asmar
1Center for Radiophysics and Space Research, Cornell University, Ithaca, New York 14853, USA. pct2@cornell.edu
Nature
|July 6, 2007
Resumen
Saturno Saturno es Saturno.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- La astronomía es la astronomía.
- La astrofísica es la astrofísica.
Sus antecedentes:
- Hiperión, la luna irregular más grande de Saturno, exhibe una rotación caótica.
- Su superficie es única entre las pequeñas lunas heladas, pero las razones siguen sin estar claras.
Objetivo del estudio:
- Para investigar las características únicas de la superficie y las propiedades físicas de la luna de Saturno Hyperion.
- Determinar la causa de la distinta apariencia de la superficie de Hiperión y la preservación del cráter.
Principales métodos:
- Análisis de imágenes de alta resolución de la superficie de Hyperion.
- Mapeo de los cráteres de la superficie.
- Determinación del tamaño, masa y densidad media de Hiperión.
Principales resultados:
- Hyperion muestra una textura distintiva parecida a una esponja a escalas de kilómetros.
- Se observó una alta densidad de cráteres bien conservados (2-10 km).
- La densidad media calculada como 544 +/- 50 kg m(-3), lo que indica una porosidad superior al 40%.
Conclusiones:
- La alta porosidad de Hyperion (>40%) es un factor clave en su superficie única.
- La porosidad probablemente mejora la preservación del cráter al reducir las eyecciones.
- Esto explica la inusual apariencia de Hiperión y su paisaje de cráteres.
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