Planet the Drake equation, which estimates the number of intelligent, communicating civilizations that exist in the Milky Way. There are exoplanets that are much closer to their parent star than any planet in the Solar System is to the Sun, and there are also exoplanets that are much farther from their star. Mercury, the closest planet to the Sun at 0.4 AU, takes 88 days for an orbit, but the shortest known orbits for exoplanets take only a few hours, e.g. Kepler-70b. The Kepler-11 system has five of its planets in shorter orbits than Mercury's, all of them much more massive
Planet Heroes Christmas 2009 prices on Amazon.com for Planet Heroes toys have shot up for all characters. The most difficult toys to find are Voice Comm. Sun Commander and Voice Comm Tiny Asteroid. Neither of which are for sale on any internet website. The original Pluto Shiver toy is the next most difficult to find, which goes for over $50 on eBay or Amazon. The Fisher Price Website currently has Planet Heroes Voice Comm toys on sale for $7.99. The vast majority of original figures and metallic squad characters are not available from the Fisher Price Store. Planet Heroes Planet Heroes is