The Cassini spacecraft was sent on its way to Saturn in 1997. Since then, she has travelled nearly four billion kilometers, delivered a probe to a toxic moon, discovered phantasmagorical structures on the planet's icy rings, studied the startling atmosphere on a tiny moon. Now, on a daring spiral orbit, Cassini will streak toward Saturn itself, streaming data to Earth before be... 想看更多的未知相關(guān)土星王國(guó)-卡西尼號(hào)航天器壯烈探索之旅,請(qǐng)關(guān)注我們的網(wǎng)站:www.hfguangya.com
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