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Publisher Annotation: Planet Earth is in the Milky Way Galaxy, the cloudy band of light that stretches clear across the night sky. How many galaxies are there in the universe? For years astronomers thought that the Milky Way was the universe. Now we know that there are billions of them. Gail Gibbons takes the reader on a journey light-years away.
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There are tons of movies about aliens coming to Earth. Sometimes they come to be our friends, sometimes they come to destroy us-and sometimes they come to make circles in our cornfields. But what about reality? Do scientists actually believe there is intelligent life somewhere out in space? In fact, many scientists spend their days looking for signs of life throughout the galaxy. Others look for ways to make contact with aliens if they exist. And...