Celebrating A Year Of Science

摘要

In this final issue of the year, science continues a tradition by presenting our selections for the 10 major scientific breakthroughs of 2008. At the top of the list: the rapidly expanding field of cell reprogramming, which began with a seminal discovery in 2006 and this year reached the stage where much new knowledge of both fundamental and applied significance is being harvested. And the runner-up: the first direct observations of planets orbiting distant Sun-like stars.