Best of 2013

The blog posts Hacker News loved most in 2013. 1,327 posts.

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Three Planets in Habitable Zone of Nearby Star

A team of astronomers has combined new observations of Gliese 667C with existing data from HARPS at ESO’s 3.6-metre telescope in Chile, to reveal a system with at least six planets. A record-breaking three of these planets are super-Earths lying in the zone around the star where liquid water could exist, making them…