The biggest barrier to future space exploration is in our heads

<p>With enough time, the technological challenges of sending humans to Mars and beyond are solvable. But psychologically, we&#x2019;re not ready to leave our home.</p><br /><p>In 1945 British science fiction writer Arthur C. Clarke&#x2014;now best known for&#xA0;<em>2001: A Space Odyssey&#x2014;</em>correctly predicted the invention of satellites, the first of which launched into space in 1958. Then in 1963, Clarke predicted that a man would land on the moon and safely return to Earth sometime around the year 1970&#x2014;which Neil Armstrong and Buzz Aldrin did in the summer of 1969. In 1973, Clarke predicted a future where humans would be able to monitor outer-space threats such as asteroids and other near-earth objects&#x2014;NASA established its Near-Earth Object Observations Program in 1998.</p><p>Read Full Story</p><div class="feedflare"><br /> <br /></div>

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