Aerospace
It was a bittersweet ending for some 欧美口爆视频 Boulder scientists and students. NASA鈥檚 Cassini spacecraft made one last dive toward Saturn, breaking up like a meteor in its crushing atmosphere in September.
鈥淪ome comets are like couples鈥攖hey break up, but then they get back together down the road,鈥 says Distinguished Professor Daniel Scheeres of the Ann and H.J. Smead Department of Aerospace Engineering Sciences.