Descubrimientos en marte
Las novedades encontradas por la nasa en marte
En el portal especializado space.com han publicado la lista con los diez descubrimientos mas importantes si de los rovers Spirit y Opportunity, lista que se expone a continuación.
1 - Un Marte húmedo
Hace décadas que los investigadores sospechaban que Marte fue un planeta húmedo. Los rover han encontrado gran cantidad de rocas sedimentarias, que demuestran claramente que el pasado en Marte existieron ríos y mares.
2 - Una estación meteorológica
Los rovers han obtenido el primer mapa meteorológico de la superficie del planeta rojo, incluyendo evidencias de corrientes ascendentes de aire caliente (las “térmicas”). Esta información resultará muy útil en las futuras misiones a Marte.
3 - Nubes de hielo
Uno de los descubrimientos mas sorprendentes fue la observación de nubes que tienen un aspecto muy similar al que tienen en la Tierra. Estas nubes están localizadas en zona del ecuador y se sospecha que están compuestas de cristales de hielo de agua.
4 -La Tierra desde Marte
En esta fotografía, tomada desde el Spirit, se puede observar la Tierra. Esta es la primera fotografía de nuestro planeta obtenida desde la superficie de otro planeta.
5 - Tornados de polvo
Uno de los fenómenos mas curiosos que han observado los rovers son oleadas de tornados de polvo recorriendo la superficie. Siga este enlace para observar un vídeo de estos remolinos en acción.
6 - Las tres caras de Marte
Los estudios de los rover han revelado que Marte se fue secando de forma progresiva, lo que le hizo pasar por tres eras geológicas. la primera, que se extendió desde hace 4.600 millones de años hasta hace 4.000 millones, fue relativamente húmeda;la segunda era, que va desde hace 4.000 hasta hace 3.500 millones de años, se caracterizó por una fuerte actividad volcánica que dispersó gran cantidad de sulfuros que convirtieron el entorno en un medio seco y ácido.La tercera era, en la que se encuentra ahora el planeta, no presenta ninguna señal de actividad de agua. Los investigadores creen que, si hubo alguna vez vida en Marte, fue solo durante la primera era geológica.
7 - Marte huele mal
Los rover han descubierto que las rocas marcianas contienen una concentración muy elevada de sulfuros, lo que indica que, si pudiéramos movernos sobre su superficie sin traje espacial, notaríamos un olor a huevos podridos.
8 - Un meteorito en Marte
Durante su exploración, el Opportunity encontró una curiosa roca del tamaño de una pelota de baloncesto hecha de hierro y niquel. Se trata del primer meteorito encontrado en un cuerpo distinto de la Tierra
9 - Fuego y agua
En el punto del aterrizaje, el Spirit descubrió unas rocas basálticas que se habrían formado por el contacto de magna volcánico con agua, lo que significa que Marte0
4 comentarios:
vayaa tiene cosas deverdad muy interesantes tu blog!
es increiblee lo de martee!
la fotografia y lo de la nubes!
saludos.
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