The Science breakthrough of the year, readers' choice, and the top news from 2015.
Tuesday, January 12, 2016 - 14:10
in Biology & Nature
Robert Coontz discusses Science's 2015 Breakthrough of the Year and runners-up, from visions of Pluto to the discovery of a previously unknown human species. Online news editor David Grimm reviews the top news stories of the past year with Sarah Crespi. Hosted by Susanne Bard.