An curved arrow pointing right. NASA's Cassini spacecraft plunged into Saturn's atmosphere on September 15, marking an end to its mission to study the ringed planet and its many, mysterious moons.
For the last 13 years, NASA's Cassini spacecraft has spied on Saturn and its many moons. Turns out, this region of space could hold the greatest secrets of our solar system. Here are 5 of the most ...
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