Measuring the size of the Universe

Among the dramatic news sought by Kepler - what other Earth-like planets exist in the Milky Way? - astronomers should be able to use its incredible optics to get better fix on the actual size of the Universe as well. The craft is going through a shakedown period before turning its gaze toward about 100,000 suns near the Cygnus and Lyra constellations, between 600 and 3,000 light years away, where it will look for any winks that will betray planets transiting their stars