How Kepler discovers planets
Kepler Paper Model
click on image to see region of Milky Way where Kepler will search for extrasolar planets. See also Target Region—artwork by Jon Lomberg
Interactive web page:
Planet Families—Build-a-Solar System
About solar system transits, including transits of Mercury and Venus.
"Alien's-eye view" of a transit in the solar system
Curators: David Koch, Alan Gould
