The announcement was made over six days ago but the fascination should last a lifetime:
The universe looked a little more familiar and friendlier. The roll call of planets beyond the solar system swelled significantly with the announcement of a trio of newly-discovered worlds much smaller than any previously discovered around other stars.The masses of these new planets are comparable to those of Neptune or Uranus in our solar system, ranging from about 14 to 20 times the mass of Earth.
...[T]heir discovery, astronomers said, is an encouraging sign that planets are plentiful and varied in the galaxy and that a new generation of planet-hunting space missions planned for the next decade will find planets as small as Earth.
I've always been baffled as to why these articles never make the intuitive leap and conclude that the size of planets astronomers can spot is a direct consequence of increasing monitoring precision of gravitational wobble — and that tiny, nickel-iron-core planets like Sol's innermost four planets are almost certain to be found when proper instrumentation is invented. Basic science narrates a progression of revised definitions for the smallest particle in existence, each discovered through finer and finer microscopes. Why not heavenly bodies, too?