ScienceThis Week In Space: Of Black Holes And Butterflies Stephen Hawking may have solved a long-standing problem in astrophysics with math, but NASA is working on pre-empting problems by crashing expensive pieces of equipment. Plus, fire fountains on the moon and a cosmic butterfly.by Andrea Alfano
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ScienceCassini Spacecraft Zips Past Dione One Last Time: NASA Releases Stunning Image Of Saturn's Icy Moonby Rhodi Lee