Best of 2015

Every time, when the end of the year gets closer and closer, we use to sum up all the things that happened through those 365 days and 6 hours. Recapitulation of the cycle, the trip of the Earth around the Sun. Now it is time to make a summary of the best of the scientific world in the year that ends. 
Enjoy the best of SCIENCE here: http://news.sciencemag.org/scientific-community/2015/12/best-2015
And the best images of NATURE by clicking on the picture below. Be delighted!