NASAのインスタグラム(nasa) - 2月6日 07時49分

Crescents belonging to two of Saturn’s moons – Rhea and Titan – show off their vast differences. Rhea is a heavily-cratered, airless world, while Titan’s nitrogen-rich atmosphere is even thicker than Earth’s.
This natural color image was taken in visible light by the Cassini spacecraft on Nov. 19, 2009, at a distance of approximately 713,300 miles (1,148,000 kilometers) from Rhea. After a nearly 20-year mission that overflowed with discoveries, the Cassini spacecraft ended its mission on Sept. 15, 2017.
Credit: NASA/JPL-Caltech/Space Science Institute
#nasa #space #cassini #saturn #rhea #titan #moons #moon #earth #atmosphere #solarsystem #exploration #science #pictureoftheday #spacecraft #mission #visible #light

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