Astronomy December 2019

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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?