Given the state of our technology, it would take a spacecraft a ridiculously long time to reach even the nearest star in our galaxy. However, scientists continue to ponder ways in which we could achieve the dream of interstellar spaceflight. Here are a few of their best ideas. The Universe is unfathomably huge, with over 2 trillion galaxies in an "observable" volume measuring 93 billion light-years in diameter. Even our galaxy, the Milky Way, is incredibly huge, measuring an estimated 100,000 light-years across and contain... [12460 chars]
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