Astronomy December 2019

Buy More, Save More: 2 Back Issues – Save 5% (use code: MAGAZINES5) 3-4 Back Issues – Save 10% (use code: MAGAZINES10) 5+ Back Issues – Save 15% (use code: MAGAZINES15) Return to Pluto! Researchers already are planning an ambitious spacecraft that will orbit the mysterious world. S. Alan Stern The oddities of Isaac Newton Revered as a great thinker and scientist, he was also obsessive, secretive, vindictive, and paranoid. Raymond Shubinski Sky This Month Gas giants bid a fond farewell. Martin Ratcliffe and Alister Ling Star Dome and Path of the Planets Richard Talcott; Illustration by Roen Kelly Chasing a Chilean eclipse  Peruvian nights, Incan sites, and coronal lights were all on full display during my recent adventure through South America. Jake Parks Starmus V rocks in Zurich The fifth Starmus Festival, an international celebration of science and music, assembled an all-star cast if astronauts, Nobel Prize laureates, musicians, and scientists. David J. Eicher Ask Astro How is Phoebe different?