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Apr 29, 2015 05:13 PM ET // Ian O'Neill
In the latest series of observations beamed back from NASA's New Horizons spacecraft, surface features are becoming evident including the stunning revelation that Pluto may possess a polar ice cap.
Aug 25, 2014 02:25 PM ET // Ian O'Neill
As we wait in anticipation for NASA's New Horizons probe to make its historic Pluto flyby on July 14, 2015, the mission is about to cross another milestone. Continue reading →
Jun 9, 2014 05:33 PM ET // Ian O'Neill
Pluto is often considered to be a 'binary planet' with its largest moon Charon and now it seems that both share more than a common orbit -- they may share a thin atmosphere. Continue reading →
Jul 10, 2013 03:34 PM ET // Ian O'Neill
NASA's New Horizons probe has spotted something right next to Pluto -- a pixelated Charon, the dwarf planet's largest moon. Continue reading →
Feb 11, 2013 09:00 AM ET // Ian O'Neill
Two of dwarf planet Pluto's tiniest moons need names -- but rather than leaving the Plutonian satellites' naming ceremony to astronomers, that honor has fallen to you. ->