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It was a bittersweet ending for some CU ��«����Ƶ scientists and students. NASA’s Cassini spacecraft made one last dive toward Saturn, breaking up like a meteor in its crushing atmosphere in September.

“Some comets are like couples—they break up, but then they get back together down the road,” says Distinguished Professor Daniel Scheeres of the Ann and H.J. Smead Department of Aerospace Engineering Sciences.