Strange New Worlds: Exoplanets Abound in the Cosmos (Part 2)

A comparison of the sizes of the three known planets of the star Kepler-37 with some of the worlds of the solar system. Image Credit: NASA/JPL-Caltech

Astronomers have been dazzled by the sheer number of planets there seem to be in the galaxy. According to a recent estimate, there’s on average at least […]