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POPSWhy can't we hear the transmissions of Aliens? Some people insist that the Earth has been leaking signals into space for the last few decades and by now we should have gotten someone's attention or heard someone else out there leaking signals. The fact is that you would need a radio dish the size of the Arecibo dish (pictured above) to pick up a good signal only as far away as Saturn. Any farther than that and even that dish will only yield static.
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POPSLiving entity possible from hot gasses in space? "So if you could have life in the hot gases of a star, or in the hot, interstellar gas that suffuses the space between the stars, well, not only would that be 'life as we don't know it' but it might be the most common type of life."
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POPSWhy America Needs to Explore Space I've often heard people question the "waste" of money to the space program. In their ignorance they simply do not know all the advances we've developed for the pittance in cost. Much more knowledge in the article.