Vulcan (hypothetical planet) Vulcan (hypothetical planet) Vulcan is a small hypothetical planet that was proposed to exist in an orbit between Mercury and the Sun. Attempting to explain peculiarities of Mercury's orbit, the 19th-century French mathematician Urbain Le Verrier hypothesized that they were the result of another planet, which he named "Vulcan". A number of reputable investigators became involved in the search for Vulcan, and despite occasional claimed observations, no such planet was ever confirmed. Peculiarities in Mercury's orbit have now been explained by Albert Einstein's theory of general relativity. Searches of data gathered by NASA's two "STEREO" spacecraft have failed to find
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