Astronomers are not only discovering planets around distant suns, they are also starting to measure those worlds with astonishing precision. The diameter of a super-Earth named "Kepler 93 b" is now known to within an accuracy of 1%.
VIDEO: http://www.youtube.com/watch?v=lA6MJkHJXVk&feature=youtu.be
FULL STORY: http://science.nasa.gov/science-news/science-at-nasa/2014/18aug_sizeup/
