Science Plots.

Each dot is a planet with known mass and radius. The distinct clusters reveal planet families — rocky worlds, sub-Neptunes, gas giants. Hover to identify.

Host stars plotted by temperature (x) vs size (y). The main sequence diagonal, giant branch, and dwarf stars emerge from real data. Hover a star to see its planets.

distribution of planet radii shows a mysterious gap between 1.5-2 Earth radii, the "Fulton gap". Planets rarely have radii in this range. Although the gap isn't clear here, this is a real discovery from Kepler data.