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POPSSolar Sailing in Space The concept of solar sailing was invented in the 1920s by two Russian scientists, and it has been the subject of a few projects over the years, says Louis Friedman, the executive director of the Planetary Society, a public space organization based in Pasadena, CA
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POPSAre We Living in a Giant Void? Their theory posits that if in fact Earth and our surrounding neighbors are in fact in an unusual or special region of space, ie, a void, then our perspective on the universe would be severely challenged
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POPSMy space for the highest bidder Giving extraterrestrial property rights could be a powerful force, not only for exploration, but for the efficient development of the discovered and undiscovered resources of space
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POPSFive questions for a galactic visitor The simple fact is that certain people have always opposed progress while other, better people have driven it. "Experts" decried boiled water as unhealthy compared the vital stuff straight from the river, cursed antibiotics as a temporary placebo, and confidently declared that computers were nothing but expensive toys. As an intelligent species we must make every effort to contact anyone or thing we can - and if you don't like it, there are some lovely caves you can move back to. what are your questions?