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For thousands of years the curious and the romantic have studied the night sky and wondered if anything else is out there. Four centuries ago Galileo Galilie answered the question of the ages. He trained a telescope on the heavens and saw objects that no other person had ever seen: hundreds of stars, mountains on the Moon, satellites of Jupiter. Since then we've found planets around other stars, one hundred billion stars in our galaxy, and hundreds of billions of galaxies beyond our own. The 4% Universe According to physicists most of the Universe is still to be discovered. In 2010, Richard Panek, a journalist not a physicist, summed up what he gleaned from physicists by saying, “only 4 percent…
