Relative sizes of Kepler habitable zone planets discovered as of 2013 April 18.
Left to right: Kepler-22b, Kepler-69c, Kepler-62e, Kepler-62f, and Earth
(except for Earth, these are artists' renditions).

TIFF version (3000x2250 pixels, 2Mb)

Credit: NASA/Ames/JPL-Caltech