![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2013/12/exoplanetline_up_free.jpg?fit=860%2C460&ssl=1)
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
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