Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities
Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities
In the Solar system the planets' compositions vary with orbital distance, with rocky planets in close orbits and lower-density gas giants in wider orbits. The detection of close-in giant planets around other stars was the first clue that this pattern is not universal, and that planets' orbits can change substantially …