Top exoplanet finds of 2013

LITTLE RUNT  Kepler-37b is the littlest planet found to date and looks puny compared to planets in our solar system and to those also orbiting parent star Kepler-37.

Ames/JPL-Caltech/NASA

With the addition this year of 180 new worlds to the Paris Observatory’s list of confirmed exoplanets, there are now more than 1,000 known planets orbiting stars other than the sun.