Two of Saturn's moons - Rhea (bottom) and Dione (top) - appear conjoined in this Cassini spacecraft image. Dione is actually closer to the spacecraft here, but the reflection of the sun and a large crater at its south pole appears to make it blend seamlessly with Rhea. The newly-released image was taken July 27, 2010 at a distance of approximately 1.1 million kilometres (688,000 miles) from Dione and 1.6 million kilometres (994,000 miles) from Rhea.
Astronomia, astrofísica, astrogeologia, astrobiologia, astrogeografia. O macro Universo em geral, deixando de lado os assuntos mundanos. Um olhar para o sublime Universo que existe além da Terra e transcende nossas brevíssimas vidas. Astronomy astrophysics, astrogeology, astrobiology, astrogeography. The macro Universe in general, putting aside mundane subjects. A look at the sublime Universe that exists beyond Earth and transcends our rather brief life spans.
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domingo, 3 de outubro de 2010
Rhea e Dione
Two of Saturn's moons - Rhea (bottom) and Dione (top) - appear conjoined in this Cassini spacecraft image. Dione is actually closer to the spacecraft here, but the reflection of the sun and a large crater at its south pole appears to make it blend seamlessly with Rhea. The newly-released image was taken July 27, 2010 at a distance of approximately 1.1 million kilometres (688,000 miles) from Dione and 1.6 million kilometres (994,000 miles) from Rhea.
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