The astronomers who discovered the Kepler-11 planetary system were amazed to find six large planets orbiting so close to their parent star. All six planets orbit the star at a distance that is approximately equivalent to the distance between our sun and the midpoint between the orbits of Mercury and Venus. Scientists using NASA’s Kepler, a space telescope, recently discovered six planets made of a mix of rock and gases orbiting a single sun-like star, known as Kepler-11, which is located approximately 2,000 light years from Earth. Kepler-11 has the fullest, most compact planetary system yet discovered beyond our own. Kepler-11 is the first known star to have more than three planets orbiting it. All of the planets orbiting Kepler-11, are larger than Earth, with the largest ones being comparable in size to Uranus and Neptune. The innermost planet, Kepler-11b, is ten times closer to its star than Earth is to the sun. Moving outwards, the other planets are Kepler-11c, Kepler-11d, Kepler-11e, Kepler-11f, and the outermost planet, Kepler-11g, which is twice as close to its star than Earth is to the sun. The Kepler spacecraft will continue to return science data about the new Kepler-11 planetary system for the remainder of its mission. The more transits Kepler sees, the better scientists can estimate the sizes and masses of planets.